function validateContact(){
	//alert("validate");
	var root=document.contactus;
	var name=root.name;
	var email=root.email;
	var subject=root.subject;
	var message=root.message;
	if(name.value==''){
		alert('Please enter your full name.');
		name.focus();
		return false;
	}
	if(email.value==''){
		alert('Please enter an email address.');
		email.focus();
		return false;

	}
	var pattern = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,4})+$/;
	var flag2 = email.value.match(pattern);
	if(!flag2){
		alert("Please enter a valid email address");
		email.select();
		return false;
	}

	if(subject.value==''){
		alert('Please provide your subject.');
		subject.focus();
		return false;
	}
	if(message.value==''){
		alert('Please provide your message.');
		message.focus();
		return false;
	}
}
function clearContactForm(){
	if(confirm('Are you sure you want to clear the form?')){
		var root=document.contactus;
		var name=root.name;
		var email=root.email;
		var subject=root.subject;
		var message=root.message;
		name.value = '';
		email.value = '';
		subject.value = '';
		message.value = '';
	}
	return false;
}