function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}
function changeImagesArray(array) {
	if (preloadFlag == true) {
		var d = document; var img;
		for (var i=0; i<array.length; i+=2) {
			img = null; var n = array[i];
			if (d.images) {img = d.images[n];}
			if (!img && d.getElementById) {img = d.getElementById(n);}
			if (img) {img.src = array[i+1];}
		}
	}
}
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 = true;


function preloadImages() {
	if (document.images) {
		pre_home_over = newImage('images/home_over.gif');
		pre_aboutMe_over = newImage('images/aboutMe_over.gif');
		pre_services_over = newImage('images/services_over.gif');
		pre_contact_over = newImage('images/contact_over.gif');
		pre_links_over = newImage('images/links_over.gif');
		preloadFlag = true;
	}
}