var bolIntroShown = false;

function RemoveSearchMode() {
    try {
        ActiveMerchandiser.catalogview.RemoveSearchMode();
        document.getElementById("imgClearSearch").style.visibility = "hidden";
        document.getElementById("txtPageNo").value = "";
    }
    catch (e) {
        //	alert(e);
    }
}


function ShowCatalogGroup(GroupOID, width, height) {
    var intWidth = screen.width;
    var strSubDir = "";
    var property = "top=0, left=0, resizable=1, width=" + (width - 20) + ", height=" + (height - 20);
    var wincatalog = window.open("CG_Preview.aspx?GroupID=" + GroupOID, 'CatalogSearchAll', property);
    wincatalog.focus();

}

function sethotspot(dblRatio, Params) {
    try {
        window.document.getElementById("divLoading").innerHTML = "<br><i>Loading......</i>";
        window.document.getElementById("divLoading").style.visibility = "visible";
        ActiveMerchandiser.pagetemplatecatalogview.GenerateScriptForDrawingHotSpotsForThumbnail(dblRatio, Params, sethotspot_CallBack);
    }
    catch (e) {
        //	alert(e);
    }

}
//callback we told Ajax.Net to pass the response tos
function sethotspot_CallBack(response) {
    if (response.error != null) {
        return;
    }


    var sethotspot = response.value;

    //if the response wasn't what we expected  
    if (sethotspot == null) {

        return;
    }

    var strWindowSize = sethotspot.substring(0, sethotspot.indexOf('||'));
    sethotspot = sethotspot.substring(sethotspot.indexOf('||') + 2);

    while (sethotspot.indexOf('||') != -1) {
        var strDrawHotSpots = sethotspot.substring(0, sethotspot.indexOf('||'));
        sethotspot = sethotspot.substring(sethotspot.indexOf('||') + 2);

        CallDrawHotSpots(strWindowSize, strDrawHotSpots);
    }
    // alert(sethotspot);
    if (sethotspot != '') { CallDrawHotSpots(strWindowSize, sethotspot); }
    window.document.getElementById("divLoading").innerHTML = "";
    window.document.getElementById("divLoading").style.visibility = "hidden";
}

function CallDrawHotSpots(strWindowSize, strDrawHotSpots) {
    var strDivName;
    var hotspotcoordinates;
    var NoOfPoints;
    //alert(strDrawHotSpots);
    if (strDrawHotSpots.indexOf(';') != -1) {
        strDivName = strDrawHotSpots.substring(0, strDrawHotSpots.indexOf(';'));
        strDrawHotSpots = strDrawHotSpots.substring(strDrawHotSpots.indexOf(';') + 1);
    }

    if (strDrawHotSpots.indexOf(';') != -1) {
        hotspotcoordinates = strDrawHotSpots.substring(0, strDrawHotSpots.indexOf(';'));
        strDrawHotSpots = strDrawHotSpots.substring(strDrawHotSpots.indexOf(';') + 1);
    }

    NoOfPoints = parseInt(strDrawHotSpots);
    //alert(strDivName + " " + hotspotcoordinates + " " + NoOfPoints);
    DrawHotSpots(strWindowSize, strDivName, hotspotcoordinates, NoOfPoints);

}

//ImageName, HotSpotsCoordinates
function DrawHotSpots(WindowSize, divName, hotspotcoordinates, NoOfPoints) {
    var jg = new jsGraphics(divName);            // initialize DIVs as 'canvases'
    jg.setColor('#666666'); 				  // alter pen color aa6666
    hotspotcoordinates = hotspotcoordinates.split(",");
    var intCount = 0
    var intX0;
    var intY0;
    var intX1;
    var intY1;
    var intXs = new Array()
    var intYs = new Array();

    var intXAdjust = 0;
    var intYAdjust = 0;

    var intXSize = 445;
    var intYSize = 576;

    if (divName == 'bindingright') {
        if (WindowSize == 'medium') {
            intXAdjust = 485 - 5;

        }
        if (WindowSize == 'small') {
            intXAdjust = 445 * 0.75 + 50;
            intXSize = intXSize * 0.75;
        }
        if (WindowSize == 'large') {
            intXAdjust = 445 * 1.5 + 40;
            intXSize = intXSize * 1.5;
        }
        //intYAdjust = 20;
    }
    else {
        if (divName == 'overall') {

            intXAdjust = 25;
            intYAdjust = 0;
            if (WindowSize == 'large') {
                intXAdjust += 225;
            }
        }
        else if (divName == 'binding') {
            intXAdjust = 2;
            intYAdjust = 0;
        }
        else {
            intXAdjust = 0;
            intYAdjust = 0;
        }
    }

    var IsThumbnail = true;
    if ((divName == 'bindingright') || (divName == 'binding') || (divName == 'overall')) {
        IsThumbnail = false;
    }

    if (!IsThumbnail) {
        jg.setStroke(2);
    }

    while (intCount < NoOfPoints - 1) {
        intX0 = parseInt(hotspotcoordinates[intCount * 2]) + intXAdjust;
        intY0 = parseInt(hotspotcoordinates[intCount * 2 + 1]) + intYAdjust;
        intX1 = parseInt(hotspotcoordinates[intCount * 2 + 2]) + intXAdjust;
        intY1 = parseInt(hotspotcoordinates[intCount * 2 + 3]) + intYAdjust;
        intXs[intCount] = intX0;
        intYs[intCount] = intY0;
        jg.drawLine(intX0, intY0, intX1, intY1);
        intCount = intCount + 1;
    }

    intX0 = parseInt(hotspotcoordinates[intCount * 2 + 0]) + intXAdjust;
    intY0 = parseInt(hotspotcoordinates[intCount * 2 + 1]) + intYAdjust;
    intX1 = parseInt(hotspotcoordinates[0]) + intXAdjust; ;
    intY1 = parseInt(hotspotcoordinates[1]) + intYAdjust;
    //alert(divName + " " + intX0 + " " + intY0 + " " +intX1 + " " + intY1);
    intXs[intCount] = intX0;
    intYs[intCount] = intY0;
    jg.drawLine(intX0, intY0, intX1, intY1);

    jg.setColor('#666666'); 		//ee9999
    //if (IsThumbnail)  {    	jg.fillPolygon(intXs, intYs);    }
    //jg.fillPolygon(intXs, intYs);  
    jg.paint();
}

function RegisterImageMapGenerator() {
    var ImageObj = document.getElementById("ImgImageMap");
    ImageObj.onclick = ImgPageClick;
    if (ImageObj.captureEvents) ImageObj.captureEvents(Event.CLICK);

}
function ImageLinkClick(Index) {

    document.getElementById("hidCommand").value = "LinkClick" + "-" + Index;
    document.TemplateForm.submit();
}

function ImgPageClick(e) {
    var XPosition = -1;
    var YPosition = -1;
    if (!e) e = window.event;
    var isOpera = (navigator.userAgent.indexOf('Opera') != -1);
    var isIE = (!isOpera && navigator.userAgent.indexOf('MSIE') != -1);
    if (isIE) {
        if (e.offsetX) {
            XPosition = e.offsetX;
            YPosition = e.offsetY;
        }
        else {
            alert("don't know how to get position out of event");
            return;
        }
    }
    else if (e.clientX || e.clientY) {
        XPosition = e.clientX;
        YPosition = e.clientY;
    }
    var ImgPositionX = 0;
    var ImgPositionY = 0;
    if (!isIE) {
        var ImageObj = document.getElementById("binding")
        //alert(ImageObj.offsetLeft)
        if (ImageObj.offsetLeft || ImageObj.offsetTop) {
            ImgPositionX = ImageObj.offsetLeft;
            ImgPositionY = ImageObj.offsetTop;
        }
    }
    var CoordinateX = XPosition - ImgPositionX;
    var CoordinateY = YPosition - ImgPositionY;
    document.getElementById("hidCoordicate").value = CoordinateX + ", " + CoordinateY;
    document.getElementById("hidCommand").value = "ImageClick";
    document.TemplateForm.submit();
}

function ShowHelp() {
    var intWidth = screen.width;
    var width = 485;
    var height = 530;
    var strFileName = "Help.htm";

    var property = "top=0, left=0, scrollbars=yes, width=" + width + ", height=" + height;
    var strURL = strFileName;
    var winHelp = window.open(strURL, 'Help', property);
    winHelp.focus();
}

//function ShowTOC2(CatalogOID, subDir, width, height)
function ShowTOC2(CatalogOID, SupplierID, subDir) {
    var intWidth = screen.width;
    var width = 970;
    var height = 656;
    if (intWidth > 1500) {
        width = 1415;
        height = 944;
    }

    if (intWidth < 1024) {
        width = 748;
        height = 512;
    }

    var strSubDir = "";
    if (subDir == true) {
        strSubDir = "../";
    }

    var property = "top=0, left=0, resizable=1, width=" + width + ", height=" + height;
    var strURL = strSubDir + "CatalogView.aspx?CatalogOID=" + CatalogOID + "&SupplierID=" + SupplierID + "&ShowPage=ViewCatalog.aspx?Left=1:amp:Right=-1:amp:CatalogOID=" + CatalogOID;
    var winCatalog = window.open(strURL, 'ActiveMerchandiser', property);

    winCatalog.focus();
}

// Mouseover related functions
function showleadgenerator(IsLeft, bolIsLastInMiddle) {
    if (!bolIntroShown) {
        document.getElementById("divLeadGenerator").style.visibility = "visible";
        var classname;
        if (bolIsLastInMiddle) { classname = "LeadGeneratorLast"; }
        else {
            if (!IsLeft) { classname = "LeadGeneratorRight"; }
            else { classname = "LeadGeneratorLeft"; }
        }

        document.getElementById("divLeadGenerator").className = classname;
    }
}



function gotoleadpage(PageNo, PageSize) {

    var PageName = "LeadPage.aspx"

    if (PageSize.toLowerCase() == "large") {
        PageName = "LeadPageLarge.aspx"
    }
    if (PageSize.toLowerCase() == "small") {
        PageName = "LeadPageSmall.aspx"
    }

    window.document.location.replace(PageName + "?PageNo=" + PageNo);
}

function hideleadgenerator() {
    document.getElementById("divLeadGenerator").style.visibility = "hidden";
}


function showintro(linkto) {
    //alert("here");
    if (document.getElementById("div" + linkto).innerHTML != "") {
        //alert(linkto);
        document.getElementById("div" + linkto).style.visibility = "visible";
        //$('#div' + linkto).fadeIn(600);
        bolIntroShown = true;
        hideleadgenerator();
        //alert("Here");
    }
    if (document.getElementById(linkto) != null) {
        //alert("here");
        document.getElementById(linkto).className = "MOBordered";
    }
}

function hideintro(linkto) {
    //alert("here1");
    //$('#div' + linkto).fadeOut(600);
    document.getElementById("div" + linkto).style.visibility = "hidden";
    bolIntroShown = false;
}
// Mouseover related functions

function ShowTOC(CatalogOID) {
    ShowTOC2(CatalogOID, false);
}

function ShowContent(PageNumber, CatalogOID, OtherParametersInURL) {


    //document.getElementById("iframeCatalog").src = "ViewCatalog.aspx?Left=" + PageNumber + "&Right=" + (PageNumber + 1) + "&CatalogOID=" + CatalogOID + OtherParametersInURL + "&Rand=" + Math.random();
    var strIFrameSrc = "ViewCatalog.aspx?Left=" + PageNumber + "&Right=" + (PageNumber + 1) + "&CatalogOID=" + CatalogOID + OtherParametersInURL + "&Rand=" + Math.random();
    document.getElementById("iframeCatalog").src = strIFrameSrc;
    document.getElementById("txtPageNo").value = "";
    //$('#iframeCatalog').fadeOut(10).attr('src', strIFrameSrc).fadeIn(800);
}


function showexternal(externalurl, eventlogurl) {
    var property = "";

    if ((externalurl.indexOf('http://') == -1) && (externalurl.indexOf('https://') == -1)) {
        externalurl = 'http://' + externalurl;

    }
    //alert(externalurl);
    var winExternalURL = window.open(externalurl, 'External', property);
    try
    {
        winExternalURL.focus();
    }
    catch (e) {}
    //alert(eventlogurl);
    window.document.location.replace(eventlogurl);
}



function showpagerefreshparent(PageNumber, CatalogOID, Password, OtherParametersInURL) {
    var strURL = "ViewCatalog.aspx?Left=" + PageNumber + "&Right=" + (PageNumber + 1) + "&CatalogOID=" + CatalogOID + "&Password=" + Password + OtherParametersInURL;
    window.document.location.replace(strURL);
}

function SetParentPreviousNext(PreviousLink, NextLink) {
    //alert(PreviousLink + " " + NextLink);
    window.parent.document.getElementById("hidPrevious").value = PreviousLink;
    window.parent.document.getElementById("hidNext").value = NextLink;

}
function GoPrevious() {
    GoPage('Previous');
}

function GoNext() {
    GoPage('Next');

}

function GoPage(PreviousNext) {
    var strIFrameSrc = '';
    var strCssClass = '';

    var objHid = window.document.getElementById("hid" + PreviousNext);

    if (objHid != null) {


        if (objHid.value.substring(0, 1) == "?") {
            objHid.value = "viewcatalog.aspx" + objHid.value;
        }
        strIFrameSrc = objHid.value.substring(0, objHid.value.indexOf('::'));
        strCssClass = objHid.value.substring(objHid.value.indexOf('::') + 2);



        //document.getElementById("iframeCatalog").src = strIFrameSrc + "&Rand=" + Math.random();
        var direction = 1;
        if (PreviousNext == 'Previous') {
            direction = -1;
        }
        if (strCssClass != "")
        { document.getElementById("iframeCatalog").className = strCssClass; }

        document.getElementById("iframeCatalog").src = strIFrameSrc + "&Rand=" + Math.random();

        //alert("Here");
        //$('#iframeCatalog').fadeOut(10).attr('src', strIFrameSrc + '&Rand=' + Math.random()).fadeIn(800);
    }
}

// Mouseover related functions
function setalt(LinkToList) {
    try {
        if (LinkToList != null)
        { ActiveMerchandiser.pagetemplatecatalogview.GetAlt(LinkToList, setalt_CallBack); }
    }
    catch (e) { alert(e + 'setalt'); }

}
//callback we told Ajax.Net to pass the response tos
function setalt_CallBack(response) {
    //if the server side code threw an exception
    if (response.error != null) {
        //alert(response.error); //we should probably do better than this
        return;
    }

    var stralt = response.value;
    //if the response wasn't what we expected  
    if (stralt == null) {
        return;
    }

    //alert(stralt);
    while (stralt.indexOf('|') != -1) {
        var strMouseOverContent = stralt.substring(0, stralt.indexOf('||'));
        stralt = stralt.substring(stralt.indexOf('||') + 2);
        //alert(strMouseOverContent);

        PopulateDiv(strMouseOverContent);
    }
    // alert(stralt);
    if (stralt != '') { PopulateDiv(stralt); }

}

function PopulateDiv(strMouseOverContent) {
    var strlinkto = strMouseOverContent.substring(0, strMouseOverContent.indexOf('::'));
    //alert(strlinkto);
    strMouseOverContent = strMouseOverContent.substring(strMouseOverContent.indexOf('::') + 2);
    var strlinkto2 = strlinkto.replace("/", "_");
    var strlinkto3 = strlinkto2.replace(" ", "_SPACE_");
    var strlinkto4 = strlinkto3.replace(" ", "_SPACE_");    // some sku contains more than one spaces
    strlinkto4 = strlinkto4.toLowerCase();
    //alert(strlinkto4);
    var lbl = document.getElementById("div" + strlinkto4);
    if (lbl != null) { lbl.innerHTML = strMouseOverContent; }
    for (i = 1; i < 20; i++) {				// the largest number of duplicates need to be less than 10
        lbl = document.getElementById("div" + strlinkto4 + "__" + i);
        if (lbl != null) { lbl.innerHTML = strMouseOverContent; }
    }
}

//setalthotURL
function setaltCustom(LinkToList) {
    //alert(LinkToList);
    ActiveMerchandiser.pagetemplatecatalogview.GetAltCustom(LinkToList, setaltCustom_CallBack);
}
//callback we told Ajax.Net to pass the response tos
function setaltCustom_CallBack(response) {
    //if the server side code threw an exception
    if (response.error != null) {
        return;
    }

    var stralt = response.value;

    if (stralt == null) {
        return;
    }

    while (stralt.indexOf('|') != -1) {
        var strMouseOverContent = stralt.substring(0, stralt.indexOf('||'));
        stralt = stralt.substring(stralt.indexOf('||') + 2);
        //alert(strMouseOverContent);
        PopulateDivCustom(strMouseOverContent);
    }
    //alert(stralt);
    if (stralt != '') { PopulateDivCustom(stralt); }
}

function PopulateDivCustom(strMouseOverContent) {
    var strlinkto = strMouseOverContent.substring(0, strMouseOverContent.indexOf('::'));
    //alert(strlinkto);
    strMouseOverContent = strMouseOverContent.substring(strMouseOverContent.indexOf('::') + 2);
    var lbl = document.getElementById("divCustom" + strlinkto);

    if (lbl != null) { lbl.innerHTML = strMouseOverContent; }
}


function CheckSKUs(SKUList, SKUOIDList) {
    //alert(SKUList);
    ActiveMerchandiser.CV_CoordinatesAndLinkToNew.CheckSKUs(SKUList, SKUOIDList, CheckSKUs_CallBack);
}
//callback we told Ajax.Net to pass the response tos
function CheckSKUs_CallBack(response) {
    //if the server side code threw an exception
    if (response.error != null) {
        return;
    }

    var OIDsNotFound = response.value;
    //alert(OIDsNotFound);

    if (OIDsNotFound == null) {
        return;
    }
    OIDsNotFound = OIDsNotFound.replace(" ", "")
    if (OIDsNotFound == '') {
        document.getElementById("lblMessage").innerHTML = "All product codes were verified."
        return;
    }
    else {
        while (OIDsNotFound.indexOf('|') != -1) {
            var strOID = OIDsNotFound.substring(0, OIDsNotFound.indexOf('||'));
            OIDsNotFound = OIDsNotFound.substring(OIDsNotFound.indexOf('||') + 2);
            ChangeStyle(strOID);
        }
        if (OIDsNotFound != '') { ChangeStyle(OIDsNotFound); }
        document.getElementById("lblMessage").innerHTML = "Unverified product codes are shown in red."
    }

}

function ChangeStyle(OIDNotFound) {

    //alert(OIDNotFound);
    var lbl = document.getElementById("div" + OIDNotFound);
    if (lbl != null) { lbl.style.color = "#ff0000"; lbl.style.font = "11pt arial bold"; }
}

function ChangeBGColor(divID) {
    document.getElementById(divID).style.background = "#ffffff";
}

function ChangeBGColorBack(divID) {
    document.getElementById(divID).style.background = "#eef6fe";
}

function settocfromparent(CatalogOID, PageIndex, OtherParametersInURL) {
    ActiveMerchandiser.catalogview.GetTOC(CatalogOID, PageIndex, OtherParametersInURL, settoc_CallBackforParent);

}


function settoc_CallBackforParent(response) {
    //if the server side code threw an exception
    if (response.error != null) {
        //alert(response.error); //we should probably do better than this
        return;
    }

    var strtoc = response.value;
    //alert(strtoc);
    //if the response wasn't what we expected  
    if (strtoc == null) {
        return;
    }
    var lbl = window.document.getElementById("divtoc");

    //alert(strtoc);
    lbl.innerHTML = strtoc;
}

function settoc(CatalogOID, PageIndex, OtherParametersInURL) {
    ActiveMerchandiser.pagetemplatecatalogview.GetTOC(CatalogOID, PageIndex, OtherParametersInURL, '', settoc_CallBack);
}



//callback we told Ajax.Net to pass the response tos
function settoc_CallBack(response) {
    //if the server side code threw an exception
    if (response.error != null) {
        //alert(response.error); //we should probably do better than this
        return;
    }

    var strtoc = response.value;
    //alert(strtoc);
    //if the response wasn't what we expected  
    if (strtoc == null) {
        return;
    }
    var lbl = window.parent.document.getElementById("divtoc");

    //alert(strtoc);
    lbl.innerHTML = strtoc;
}

function showtoc() {
    if (document.getElementById("divtoc").innerHTML != "") {
        document.getElementById("divtoc").style.visibility = "visible";
        //$('#divtoc').fadeIn(600);

        document.getElementById("imgTOC").src = "images/shared/table_of_contents_on.gif";
    }
}

function hidetoc() {
    //alert(document.getElementById("divtoc") == null);
    //$('#divtoc').fadeOut(200);
    document.getElementById("divtoc").style.visibility = "hidden";

    document.getElementById("imgTOC").src = "images/shared/table_of_contents_off.gif";
}

function AnyQuantityEntered() {
    for (i = 0; i < document.TemplateForm.elements.length; i++) {
        if (document.TemplateForm.elements[i].id.indexOf("txt") != -1)
            if (document.TemplateForm.elements[i].value != "")
            return true;
    }
    return false;
}

function AddToOrder() {
    if (document.getElementById('HidSKUsforInvalid').value == "") {
        if (AnyQuantityEntered()) {
            document.getElementById("HidCommand").value = "AddToOrder";
            document.TemplateForm.submit();
        }
        else {
            alert("Please enter quantity for at least one item.");
        }
    }
    else {
        alert("Invalid quantity entry for Item #" + document.getElementById('HidSKUsforInvalid').value + ".");
    }
}

function ValidateAll() {
    var ListofData = document.getElementById("HidValidationInfo").value;
    alert(ListofData);
    while (ListofData.indexof(';') != -1) {
        var strSubstring = ListofData.substr(0, ListofData.indexof(';'))

        var sku = strSubstring.substr(0, strSubstring.indexof(','))
        strSubstring = strSubstring.substr(strSubstring.indexof(','))
        var min = strSubstring.substr(0, strSubstring.indexof(','))
        var incre = strSubstring.substr(strSubstring.indexof(','))
        alert('sku=' + sku + 'min' + min + 'incre' + incre);
        ValidateQuantity(sku, min, incre);
    }
}

function ValidateQuantity(sku, minimum, increment) {
    var Valid = true;
    var ErrorMessage = "";
    if (document.getElementById('txt' + sku).value != "") {
        Valid = IsInteger('txt' + sku);

        if (Valid == false)
            ErrorMessage = "Please enter an integer quantity for Item #" + sku + ".";

        //quantity must be a multiple of increment
        if (Valid == true) {
            intQuantity = parseInt(document.getElementById('txt' + sku).value);
            //quantity must be larger than Minimum
            if (intQuantity < minimum) {
                //Valid = false;
                ErrorMessage += "The quantity entered for Item #" + sku + " must be larger than " + minimum + "."
                document.getElementById('txt' + sku).value = minimum
            }
            intQuantity = parseInt(document.getElementById('txt' + sku).value);
            var Mode = 0;
            if (increment != 0) Mode = intQuantity % increment;
            if (Mode != 0) {
                Valid = false;
                ErrorMessage += "The quantity entered for Item #" + sku + " must be a multiple of " + increment + "."
            }
        }
    }
    var strHidSKUsforInvalid = document.getElementById('HidSKUsforInvalid').value;
    if (Valid == false) {
        if (strHidSKUsforInvalid.indexOf(sku) == -1) {
            if (document.getElementById('HidSKUsforInvalid').value != "")
                document.getElementById('HidSKUsforInvalid').value += ", ";
            document.getElementById('HidSKUsforInvalid').value += "#" + sku;

        }
    }
    else {
        if (strHidSKUsforInvalid.indexOf("#" + sku) != -1) {
            if (strHidSKUsforInvalid.indexOf("#" + sku) == strHidSKUsforInvalid.length - sku.length - 1)
                if (strHidSKUsforInvalid.length != sku.length + 1)
                strHidSKUsforInvalid = strHidSKUsforInvalid.replace(", " + "#" + sku, "");
            else
                strHidSKUsforInvalid = strHidSKUsforInvalid.replace("#" + sku, "");
            else
                strHidSKUsforInvalid = strHidSKUsforInvalid.replace("#" + sku + ", ", "");

            document.getElementById('HidSKUsforInvalid').value = strHidSKUsforInvalid;

        }


    }
    if (ErrorMessage != "")
        alert(ErrorMessage);
}

function IsInteger(ID) {

    var intValue = parseInt(document.getElementById(ID).value);
    if (!isNaN(intValue)) {
        //alert("true");
        document.getElementById(ID).value = intValue;
        return true;
    }
    if (isNaN(intValue)) {
        //alert("false");
        return false;
    }
}


function ValidatePageNumber() {
    var CurrentValue = document.getElementById("hidToPageOrSearch").value.toLowerCase();

    if (CurrentValue == "page") {
        var pageNo = document.TemplateForm.txtPageNo;
        if ((pageNo.value == null) || (pageNo.value == "")) {
            alert("You did not enter a page number.\n\nPlease enter a page number and click on the Go button.\n");
            //pageNo.focus()
            return false;
        }

        if (!IsNumeric(pageNo.value)) {
            alert("You did not enter a numeric value.\n\nPlease enter a numeric value and click on the Go button.\n");
            return false;
        }
        return true;
    }
    else {
        return true;
    }
}

function IsNumeric(strString) {
    var strNumbers = "0123456789";
    var strEntry;
    var blnResult = true;

    if (strString.length == 0) return false;

    //check whether strString consists of valid numeric characters listed above in strNumbers
    for (i = 0; i < strString.length && blnResult == true; i++) {
        strEntry = strString.charAt(i);
        if (strNumbers.indexOf(strEntry) == -1) {
            blnResult = false;
        }
    }
    return blnResult;

}