/* TOGGLE OVERVIEW */
var viewIcon = new Image(40,15);
viewIcon .src = "/img/toggle-view.gif";
var hideIcon = new Image(40,15);
hideIcon.src = "/img/toggle-hide.gif";

function ToggleOverview(overviewId, iconId) {
	var image=document.images?document.images[iconId]:'';
	var overview=
		document.getElementById?document.getElementById(overviewId).style:
		document.all?document.all[overviewId].style:'';
	if(image&&overview) {
		var s=(overview.display=="none");
		image.src=s?hideIcon.src:viewIcon.src;
		overview.display=s?"":"none";
		return false;
	} else return true;
}