After dialog closed postback happens

After dialog closed postback happens

hi all,

from a.aspx im calling b.aspx as a dialog using below code


        $('a[id*="anc1"]').click(function () {
        var closestTR = $(this).closest('tr');
        var a= closestTR.find('input:hidden[id$=a]').val();
        var b= closestTR.find('input:hidden[id$=b]').val();
        var c= closestTR.find('input:hidden[id$=c]').val();
        $.fx.speeds._default = 500;
        $("#modalIframeComments").attr("src", "../b.aspx?&a=" + a+ "&b=" + b+ "&c=" + c);
        $("#divComments").dialog({
            show: "blind",
            hide: "explode",
            modal: true,
            height: 300,
            width: 550,
            title: "title1"
        });
    });















acutally that anchor is on gridview whenever i click on that link then it'll open the new Dialog b.aspx, if i close that b.aspx Dialog then that time again the b.aspx page_load event has occured some times more than 5 times the b.aspx page_load event called, may i kno what is the issue and how to resolve it?