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javascript not supporting chrome,opera,IE8

Posted By:      Posted Date: October 05, 2010    Points: 0   Category :ASP.Net
 
<asp:DropDownList ID="ddlEmpId" runat="server" Width="125px" CssClass="txtReport" onChange="ddlEmployeeId();return false;">
                                    </asp:DropDownList>
hi

Im using the following function to get selected value of dropdown through javascript.
Script works fine in IE6.
But it is not supporting IE8,opera,chrome??????

 <script type="text/javascript">
   function ddlEmployeeId()
   {
       alert("hi");
        var ddlReport = document.getElementById('ddlEmpID'); 
               
        //var Text = ddlReport.options[ddlReport.selectedIndex].text; 
        var Value = ddlReport.options[d


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