I have a checkbox server control called chkboxContact. on check iam populating the Jason data into the textbox its working fine in Firefox but not in IE.Please Suggest .Thanks
<script type="text/javascript">
 function GetInfo() {
     var checkboxInfo = $('#ctl00_PlaceHolderCenter1_chkboxContact');
     var domcheckboxInfo = checkboxInfo[0];
    if (domcheckboxInfo.checked == true) {
    GetUserInfo();
    }
    else {
        document.getElementById("ctl00_PlaceHolderCenter1_txtboxContactperson").value = "";
        document.getElementById("ctl00_PlaceHolderCenter1_txtboxMobileNo").value = "";
        document.getElementById("ctl00_PlaceHolderCenter1_txtboxEmailId").value = "";
        document.getElementById("ctl00_PlaceHolderCenter1_txtboxTelephone").value = "";
        }
}
 function GetUserInfo() {
        $.ajax({
            type: "POST",
            contentType: "application/json; charset=utf-8",
            url: "../ProfileService.asmx/GetUserInfo",
                            async: false,
             data: "{ }", // send an empty object for calls with no parameters
            dataType: "json",
            success: displayUserInfo,
             failure: reportError
            });
  }
 function displayUserInfo(response) {
var firstname;
var MobileNo;
var EmailId;
var PhoneNo;
var str = (typeof response.d) == 'string' ? eval('(' + response.d + ')') : response.d;
for (var i = 0; i < str.length; i++) {
     document.getElementById("ctl00_PlaceHolderCenter1_txtboxContactperson").value = str[i].FirstName;
     document.getElementById("ctl00_PlaceHolderCenter1_txtboxMobileNo").value = str[i].MobileNo;
     document.getElementById("ctl00_PlaceHolderCenter1_txtboxEmailId").value = str[i].EmailId;
     document.getElementById("ctl00_PlaceHolderCenter1_txtboxTelephone").value = str[i].PhoneNo;
}
 }
function reportError(XMLHttpRequest, textStatus, errorThrown) {
 alert("Status: " + textStatus); alert("Error: " + errorThrown);
 }
 </script> 
 
     
     
    