// JavaScript Document
function valid()
{
	var name = document.getElementById('name');
	var phone = document.getElementById('phone');		
	var email = document.getElementById('email');		
	var comment = document.getElementById('comment');			
	var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
	var error ='';
	if (name.value.length<3)
	{
		error = 'Please type in your full name ...';
		name.focus();		
	}
	else if (!(reg.test(email.value)))
	{
		error = 'Please type in your correct e-mail address ...';
		email.focus();
	}	
	else if (phone.value.length<10)
	{
		error = 'Please type in your correct phone number ...';
		phone.focus();
	}
	else if (comment.value.length<5)
	{
		error = 'Please type in your comments ...';
		comment.focus();
	}	
	if (error=='')
		return true;
	else
	{
		alert(error);
		return false;
	}
}