function validateEmail()
{	
	if(document.formname.email.value != '')
	{	
		var email_id = document.formname.email.value;		
		var first_char = email_id.charAt(0);
		
		var re1 = /^(([a-z])+|([0-9])+)/i
	
		var re = /^(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,3}))$/
				
		if ((! email_id.match(re)) || (! first_char.match(re1)))
		{
			alert("Invalid email address");
			document.formname.email.focus();
			document.formname.email.select();
			return false;
	    	}	 
	}	
	return true;

}