// JavaScript Document
	function disp_alert()	
	{
		
		if(document.getElementById('email').value=="")
			{
		alert("Please  enter your email");
		document.getElementById('email').focus();
		return false;
			}
else if(!isValidEmail('email'))
	    {
	    alert("Please enter valid Email");
		document.getElementById('email').focus();
		return (false)
	    }     
	}
	
function isValidEmail(strEmail)
{
  validRegExp = /^[^@]+@[^@]+.[a-z]{2,}$/i;
  strEmail = document.getElementById(strEmail).value;

   // search email text for regular exp matches
    if (strEmail.search(validRegExp) == -1) 
   {
      return false;
    } 
    return true; 
}