function newImage(arg) {
	if (document.Images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

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 = false;
function preloadImages() {
	if (document.images) {
		home_over = newImage("images/menu01a.gif");
		about_over = newImage("images/menu02a.gif");
		process_over = newImage("images/menu03a.gif");
		product_over = newImage("images/menu04a.gif");
		services_over = newImage("images/menu05a.gif");
		projects_over = newImage("images/menu06a.gif");
		login_over = newImage("images/menu07a.gif");
		contact_over = newImage("images/menu08a.gif");
		preloadFlag = true;
	}
}

function zoom_photo(thephoto)
{
	window.open('view_photo.php?photo='+thephoto,'photos',confin='height=470,width=500,toolbar=no,menubar=no,scrollbar=auto,resizable=no,location=no,directories=no,status=no');
}

function view_photos(picname,thex,they)
{
	window.open('ventana.asp?picname='+picname,'homephotos',confin='height='+ they +',width='+ thex +',toolbar=no,menubar=no,scrollbar=auto,resizable=no,location=no,directories=no,status=no');
}

function view_plan(thefile,elancho,ellargo)
{
	var ellargo= parseInt(ellargo)+40;
	window.open('view_plans.php?photo='+thefile+'&elancho='+elancho,'homeplans',confin='height='+ ellargo +',width='+ elancho +',toolbar=no,menubar=no,scrollbar=yes,resizable=no,location=no,directories=no,status=no');
}