// JavaScript Document

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() {
	changeImagesArray(changeImages.arguments);
}

function linkHighlight(){
    var urlPath = window.location.pathname;
    var thisPage = urlPath.substring(urlPath.lastIndexOf('/') + 1);
    var pageName = thisPage.split('.');
 	 var pageElement = document.getElementById(pageName[0]);

	 if (pageElement!==null){
    	pageElement.style.color = '#FFFFFF';
		}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		pre_nav2_SonomaSummit_over = newImage('sitedesign/nav2-SonomaSummit-over.jpg');
		pre_nav2_agenda_over = newImage('sitedesign/nav2-agenda-over.jpg');
		pre_nav2_RequestInvite_over = newImage('sitedesign/nav2-RequestInvite-over.jpg');
		pre_nav2_Register_over = newImage('sitedesign/nav2-Register-over.jpg');
		pre_nav2_Teleclass_over = newImage('sitedesign/nav2-Teleclass-over.jpg');
		pre_nav2_videocasts_over = newImage('sitedesign/nav2-videocasts-over.jpg');
		pre_nav2_AboutDaveEllis_over = newImage('sitedesign/nav2-AboutDaveEllis-over.jpg');
		pre_nav2_testimonials_over = newImage('sitedesign/nav2-testimonials-over.jpg');
		pre_nav2_network_over = newImage('sitedesign/nav2-network-over.jpg');
		preloadFlag = true;
	}

}