var preloaded_menu_image = [];
var image_uri = [];

function SetHighlight(obj, highlight) {
	if (obj != null) {
		if (highlight != null && !highlight) {
			obj.parentNode.style.background = 'none';
		} else {
			obj.parentNode.style.background = 'transparent url("Style/Image/' + obj.id + '.png") no-repeat center 15px';
		}
	} else {
		document.getElementById('MenuHome').parentNode.style.background = 'none';
		document.getElementById('MenuAbout').parentNode.style.background = 'none';
		document.getElementById('MenuServices').parentNode.style.background = 'none';
		document.getElementById('MenuThermalSpray').parentNode.style.background = 'none';
		document.getElementById('MenuContactUs').parentNode.style.background = 'none';
	}
}

function Preload() {
	if (document.images) {
		image_uri = [
			"Style/Image/MenuHome.png",
			"Style/Image/MenuAbout.png",
			"Style/Image/MenuServices.png",
			"Style/Image/MenuThermalSpray.png",
			"Style/Image/MenuContactUs.png"
		]

		for (var i = 0; i < image_uri.length; i++) {
			preloaded_menu_image[i] = new Image();
			preloaded_menu_image[i].src = image_uri[i];
		}
	}
}

Preload();