function objMenu(_id,_lyr) {
		this.id = _id;
		this.lyr = _lyr;
		
		this.showMenu = function () {
			
			if (layerShown) {
				
				if(actLyr != null){
					if(document.layers){
						document.layers[actLyr].visibility  = 'hide';
					}
					else {
						document.getElementById(actLyr).style.visibility = 'hidden';
					}
					
					actLyr = null;
					layerShown = false;
				}
	
			}
			
			else {
			
				if(actLyr != null && actLyr != this.id){
					if(document.layers){
						document.layers[actLyr].visibility  = 'hide';
					}
					else {	
						document.getElementById(actLyr).style.visibility = 'hidden';
					}
				}
				
				if(document.layers){
					document.layers[this.lyr].visibility  = 'show';
				}
				else {
					document.getElementById(this.lyr).style.visibility = 'visible';
				}
				
				actLyr = this.lyr;
				firstTime = true;
				layerShown = true;
				return false;
			}	
			
		}
	}
	
	
	var actLyr = null;
	var firstTime = true;
	var layerShown = false;
	
	document.onclick = function machweg(){
		if(firstTime){
			firstTime = false;
			return;
		}
		if(actLyr != null){
			if(document.layers){
				document.layers[actLyr].visibility  = 'hide';
			}
			else {
				document.getElementById(actLyr).style.visibility = 'hidden';
			}
			actLyr = null;
			layerShown = false;
		}
	}
	
	function init(){
		mQuicklinks = new objMenu('mQuicklinks','lyrQuicklinks');
		mGrouplinks = new objMenu('mGrouplinks','lyrGrouplinks');
	}