var dom = (document.getElementById && !document.all)? 1: 0;

function DivShowHide(ObjID, ObjImg){
	var obj = (dom)? document.getElementById(ObjID): document.all[ObjID];
	var img = (dom)? document.getElementById(ObjImg): document.all[ObjImg];

	if(obj.style.visibility == "hidden"){ // show
		obj.style.visibility = "visible";
		obj.style.display = "block";
		img.src="images/IconMinus.gif";
	}
	else { // hide
		obj.style.visibility = "hidden";
		obj.style.display = "none";
		img.src="images/IconPlus.gif"
	}
}