function check()
{
	if(document.contact.name.value==0)
	{
		alert("Enter Your Name")
		document.contact.name.focus()
		return false;
	}
	
	if(document.contact.email.value==0)
	{
		alert("Enter Your Email ID")
		document.contact.email.focus()
		return false;
	}
	else
			{
				var atsignPos =document.contact.email.value.indexOf("@", 0)                      // Check for @ symbol in E-mail address
				if (atsignPos == -1) 
					{
	               		alert("Enter a valid email address");
		           		document.contact.email.focus();
	               		return false;
					}
				if (document.contact.email.value.indexOf(".", atsignPos) == -1)
					{           // Check for a (dot). after @ symbol
	               		alert("Enter a valid email address");
		           		document.contact.email.focus();
	               		return false;
	        				}
			}
	
	
	if(document.contact.comments.value==0)
	{
		alert("Enter Your comments")
		document.contact.comments.focus()
		return false;
	}
	
	
}