function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		index_Home_Rollover_over = newImage("images/index_Home-Rollover-over.gif");
		index_Portfolio_Rollover_over = newImage("images/index_Portfolio-Rollover-ov.gif");
		index_Resume_Rollover_over = newImage("images/index_Resume-Rollover-over.gif");
		index_Contact_Rollover_over = newImage("images/index_Contact-Rollover-over.gif");
		portfolio_menu_03_over = newImage("images/portfolio_menu_03-over.gif");
		portfolio_menu_04_over = newImage("images/portfolio_menu_04-over.gif");
		portfolio_menu_05_over = newImage("images/portfolio_menu_05-over.gif");
		preloadFlag = true;
	}
}

function verifyFrom() {	
	if (document.contact.name.value && document.contact.email.value && document.contact.subject.value && document.contact.message.value) {
		return true;
	}else{
		alert('You left something blank, all fields are required.');
		return false;
	}
}