function contactUs(){
	// Make quick references to our fields
	var fullName = document.getElementById('fullName');
	var email = document.getElementById('email');
	var title = document.getElementById('title');
	var message = document.getElementById('message');
	
	// Check each input in the order that it appears in the form!
	if(isAlphabet(fullName, "Please enter only letters for your name")){
		if(isAlphanumeric(email, "Please enter a valid email address")){
			if(isAlphanumeric(title, "Please enter a title for your email")){
				if(isAlphanumberic(message, "Please enter a message")){
					document.form.AppName.value = navigator.appName;
					document.form.AppVersion.value = navigator.appVersion;
					document.form.Resolution.value = window.screen.width + " X " + window.screen.height;
					
					window.setTimeout("history.back(-1)",2000);
					return true;
				}
			}
		}
	}
	return false;	
}
function notEmpty(elem, helperMsg){
	if(elem.value.length == 0){
		alert(helperMsg);
		elem.focus(); // set the focus to this input
		return false;
	}
	return true;
}
function isNumeric(elem, helperMsg){
	var numericExpression = /^[0-9]+$/;
	if(elem.value.match(numericExpression)){
		return true;
	}else{
		alert(helperMsg);
		elem.focus();
		return false;
	}
}
function isAlphabet(elem, helperMsg){
	var alphaExp = /^[a-zA-Z]+$/;
	if(elem.value.match(alphaExp)){
		return true;
	}else{
		alert(helperMsg);
		elem.focus();
		return false;
	}
}
function isAlphanumeric(elem, helperMsg){
	var alphaExp = /^[0-9a-zA-Z]+$/;
	if(elem.value.match(alphaExp)){
		return true;
	}else{
		alert(helperMsg);
		elem.focus();
		return false;
	}
}
function lengthRestriction(elem, min, max){
	var uInput = elem.value;
	if(uInput.length >= min && uInput.length <= max){
		return true;
	}else{
		alert("Please enter between " +min+ " and " +max+ " characters");
		elem.focus();
		return false;
	}
}
function madeSelection(elem, helperMsg){
	if(elem.value == "Please Choose"){
		alert(helperMsg);
		elem.focus();
		return false;
	}else{
		return true;
	}
}
function emailValidator(elem, helperMsg){
	var emailExp = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
	if(elem.value.match(emailExp)){
		return true;
	}else{
		alert(helperMsg);
		elem.focus();
		return false;
	}
}