var preloadFlag=false;

function preloadImages()
{
	if(document.images)
	{
		pre_overview_over = new Image(85,39);
		pre_overview_over.src="images/product_over.gif";

		pre_pricing_over = new Image(85,39);
		pre_pricing_over.src="images/contact_over.gif";

		pre_help_over = new Image(85,39);
		pre_help_over.src="images/support_over.gif";

		pre_about_us_over = new Image(85,39);
		pre_about_us_over="images/services_over.gif";
		preloadFlag = true;
	}
}
function openRegWindow()
{		
	//NOTE: for IE no spaces are allowed in the window name.
	window.open('register.html', 'Registration', 'height=590,width=800');
	return false;
}
function changeImages(imgDocID, imgObjName) {
	document.images[imgDocID].src = imgObjName;
}