function ButtonDown(objName,iButton) {
	if (top.frames.length!=0) {
		// Wy does this not work with "Opera"???:
		// with (top.frames['Menu']) {
			var objStr,obj,oldObj=top.frames['Menu'].document.vClickRestore;

			if (top.frames['Menu'].document.vButtonDown != iButton) {
	
				objStr="top.frames['Menu'].document."+objName;
				obj=eval(objStr);

				obj.src=top.frames['Menu'].document.ImageArray[iButton].src;
	
				if (oldObj != null)
					oldObj.src=top.frames['Menu'].document.ButtonArray[top.frames['Menu'].document.vButtonDown].src;	// restore currently clicked Button
		
				top.frames['Menu'].document.vClickRestore=obj;
				top.frames['Menu'].document.vNoRestore=1;
				top.frames['Menu'].document.vButtonDown=iButton;
			} // if
	//	} // with
	} // if 
} //ButtonDown