function newImage(arg) {
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		return rslt;
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}

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

var preloadFlag = false;
function preloadImages() {
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		var changing_landscape = newImage("../images/navigation/go_elastic/changing_landscape_off.png");
		var elastic_marketing = newImage("../images/navigation/go_elastic/elastic_marketing_off.png");
		var rocket_science = newImage("../images/navigation/go_elastic/rocket_science_off.png");
		var what_we_do = newImage("../images/navigation/go_elastic/what_we_do_off.png");
		
		var elastic_blog = newImage("../images/navigation/artificial_intelligence/elastic_blog_off.png");
		var take_me_to_your_leader = newImage("../images/navigation/artificial_intelligence/take_me_to_your_leader_off.png");
		var people_principles = newImage("../images/navigation/artificial_intelligence/people_principles_off.png");
		
		var changing_landscape_over = newImage("../images/navigation/go_elastic/changing_landscape_on.png");
		var elastic_marketing_over = newImage("../images/navigation/go_elastic/elastic_marketing_on.png");
		var rocket_science_over = newImage("../images/navigation/go_elastic/rocket_science_on.png");
		var what_we_do_over = newImage("../images/navigation/go_elastic/what_we_do_on.png");
		
		var elastic_blog_over = newImage("../images/navigation/artificial_intelligence/elastic_blog_on.png");
		var take_me_to_your_leader_over = newImage("../images/navigation/artificial_intelligence/take_me_to_your_leader_on.png");
		var people_principles_over = newImage("../images/navigation/artificial_intelligence/people_principles_on.png");
		
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