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

function changeImagesArray(array) {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<array.length; i+=2) {
			document[array[i]].src = array[i+1];
		}
	}
}

function changeImages() {
	changeImagesArray(changeImages.arguments);
}

function toggleImages() {
	for (var i=0; i<toggleImages.arguments.length; i+=2) {
		if (selected == toggleImages.arguments[i]){
			changeImagesArray(toggleImages.arguments[i+1]);
		}
	}
}

var selected = '';
var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		homeimage_sel = newImage("images/homeimage_04.gif");
		homeimage_over = newImage("images/homeimage_05.gif");
		homeimage_down = newImage("images/homeimage_06.gif");
		preloadFlag = true;
	}
}
function sfHover() {
	var sfEls = document.getElementById("navbar").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
 }
 if (window.attachEvent) window.attachEvent("onload", sfHover);