function browse_url(form, url){
	var value = form.options[form.selectedIndex].value;
	window.location.href = url + value ;
}

function swap(id, url) {
	document.images[id].src = url ;
}

function popup(url, width, height, scrollbars){
	if(!width)
		width = 300 ;
	if(!height)
		height = 300 ;
	if(!scrollbars)
		scrollbars = 0 ;
	void(window.open(url,'popup','height='+height+',width='+width+',scrollbars=0,resizable=0,menubar=0,location=0,directories=0,toolbar=0,status=0')) ;
}
function preload_img(){
	var myimages = new Array();
	for (x=0; x<preload_img.arguments.length; x++){
		myimages[x] = new Image();
		myimages[x].src = preload_img.arguments[x];
	}
}