var error="";
e_regex = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,})+$/;

function Checkit(theform) {
	
	if(theform.yourname.value=="") {
		error+="You did not enter your name\n";
	}
	
	if(theform.youremail.value=="") {
		error+="You did not enter your email\n";
	} else if(!e_regex.test(theform.youremail.value)) {
		error+="Invalid email address\n";
	}
		
	if(theform.yourmessage.value=="") {
		error+="You did not enter your message\n";
	}
	
	if(error) {
		alert('**The form returned the following errors:**\n\n' + error);
		error="";
		return false;
	} else {
		return true;
	}
}