function checkFeedbackFields()
{


   /*------------------Validate Name-----------------*/
   if (document.aspnetForm.ctl00_ContentPlaceHolder1_dname.value=="")
   {
     alert("Enter the Name.");
     document.aspnetForm.ctl00_ContentPlaceHolder1_dname.focus();
     return false;
   } 
 /*------------------Validate Email-----------------*/
    if (document.aspnetForm.ctl00_ContentPlaceHolder1_demail.value=="")
   {
     alert("Enter the emailID.");
     document.aspnetForm.ctl00_ContentPlaceHolder1_demail.focus();
     return false;
   } 
   
   var str=document.aspnetForm.ctl00_ContentPlaceHolder1_demail.value;
    var at="@"
    var dot="."
    var lat=str.indexOf(at)
    var lstr=str.length
    var ldot=str.indexOf(dot)
    if (str.indexOf(at)==-1)
    {
      alert("Enter valid Email_id.");
      document.aspnetForm.ctl00_ContentPlaceHolder1_demail.focus();
      return false;
    }
    if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr)
    {
      alert("Enter valid Email_id.");
      document.aspnetForm.ctl00_ContentPlaceHolder1_demail.focus();
      return false;
    }
    if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr)
    {
      alert("Enter valid Email_id.");
      document.aspnetForm.ctl00_ContentPlaceHolder1_demail.focus();
      return false;
    }
    if (str.indexOf(at,(lat+1))!=-1)
    {
      alert("Enter valid Email_id.");
      document.aspnetForm.ctl00_ContentPlaceHolder1_demail.focus();
      return false;
    }
    if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot)
    {
      alert("Enter valid Email_id.");
      document.aspnetForm.ctl00_ContentPlaceHolder1_demail.focus();
      return false;
    }
    if (str.indexOf(dot,(lat+2))==-1)
    {
      alert("Enter valid Email_id.");
      document.aspnetForm.ctl00_ContentPlaceHolder1_demail.focus();
      return false;
    }
    if (str.indexOf(" ")!=-1)
    {
      alert("Enter valid Email_id.");
      document.aspnetForm.ctl00_ContentPlaceHolder1_demail.focus();
      return false;
    }  
   
   /*------------------Validate Message-----------------*/
    if (document.aspnetForm.ctl00_ContentPlaceHolder1_txtcmts.value=="")
   {
     alert("Enter the Message.");
     document.aspnetForm.ctl00_ContentPlaceHolder1_txtcmts.focus();
     return false;
   } 
  
}