function checkform()
{

if(document.form1.name.value == ""  )
	{
		alert("Please Enter Name.");
		document.form1.name.focus();
		return false;
	}
	if(document.form1.email1.value == ""  )
	{
		alert("Please Enter Email.");
		document.form1.email1.focus();
		return false;
	}
		emailExp= /^\w+(\-\w+)*(\.\w+(\-\w+)*)*@\w+(\-\w+)*(\.\w+(\-\w+)*)+$/;
	 	 if (!(emailExp.test(form1.email1.value)))
		{ 
			   alert("Email Address is not proper");
			   form1.email1.value="";
			   form1.email1.focus();
			   return false;  
		} 
		

}