var sFeatures="dialogHeight:350px;dialogwidth: 460px;";
 var sNewsFeatures="dialogHeight:210px;dialogwidth: 315px;";
 "fnChangeText('textfield2','Enter Your EMailID')"
 function fnChangeText(varControl,varValue)
 {
    var control = document.getElementById(varControl);
    control.value=varValue;
    control.select();
 }
  function fnOpen()
    {
       window.showModalDialog("QuickContacts.aspx", "",sFeatures)
    }
  function newsOpen()
    {
         var istatus=verifyEmail();
         if(istatus==true)
         {
           window.showModalDialog("NewsLetterSubs.aspx" + "?email=" + document.getElementById("textfield2").value, "",sNewsFeatures)
         textfield2.value="Enter Your Email-ID";
         }
         else
         {
                 alert("Please enter valid email ID");
         }
            
       

    }
      function verifyEmail()
      {
        var status = false;     
        var emailRegEx = /^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$/i;
         if (document.getElementById("textfield2").value.search(emailRegEx) == -1) {
            
              status = false;
         }
          else {
            
              status = true;
         }
         return status;
       }