// JavaScript Document
	function checkform(){

	var doc		 = document.form;

	name	     = doc.visitor.value;

	email        = doc.visitormail.value;

	address  	= doc.address.value;

	phone_no	= doc.phone_no.value;

	comments = doc.notes.value;	



	if (name == ""){

		alert("Please enter your name");

		doc.visitor.focus();

		return false;

	}	 



	if(email == ""){

		alert('Please enter your e-mail address');

		doc.visitormail.focus();

		return false;

	}

	

		var pattern=/^([a-zA-Z0-9_.-])+@([a-zA-Z0-9_.-])+\.([a-zA-Z])+([a-zA-Z])+/;

		if(!pattern.test(email)){         

			alert("'This e-mail id is not valid, please enter your valid e-mail id");

			doc.visitormail.focus();

			return false;

		}



	if (address == ""){

		alert("Please enter your short address");

		doc.address.focus();

		return false;

	}	

	

	if (phone_no == ""){

		alert("Please enter your phone number");

		doc.phone_no.focus();

		return false;

	}	

	

	var pattern2=/^[0-9]/;

		if(!pattern2.test(phone_no)){         

			alert("'This phone number is not valid, please enter your valid phone number");

			doc.phone_no.focus();

			return false;

		}



	if(comments == ""){

		alert('Please enter your comments/requirements');

		doc.notes.focus();

		return false;

	}	

}