var current_popup     = "";

 function WMEnterMenu(n) {
	var layer_id = n;
	if(WMShowLayer(n)) {
		current_popup=n;
	}
}
                
function WMLeaveMenu() {
	if(current_popup != ""){
		var layer_id = current_popup;
	 	WMHideLayer(layer_id);
     }
}

function WMShowLayer(layerName){
 if (document.layers) {
	firstBit='document.layers["';
	secondBit='"]';
	styleRef='';
	leftVar='.left';
	topVar='.top';
	heightVar='.clip.height';
	widthVar='.clip.width';
	
	mIncrement = 20;
} else if (document.all) {
	firstBit='document.all["';
	secondBit='"]';
	styleRef='.style';
	leftVar='.posLeft';
	topVar='.posTop';
	heightVar='.clientHeight';
	widthVar='.clientWidth';
	
	mIncrement = 4;
} else if (document.getElementById) {
	firstBit='document.getElementById("';
	secondBit='")';
	styleRef='.style';
	leftVar='.left';
	topVar='.top';
	heightVar='.clientHeight';
	widthVar='.clientWidth';
	mIncrement = 4;
}
	returnvalue = false;
	if(!eval(firstBit+layerName+secondBit)) {
	} else {
		if(eval(firstBit+layerName+secondBit)!='undefined') {
		eval(firstBit+layerName+secondBit+styleRef+'.visibility="visible"');
		returnvalue = true;
		}
	}
	return returnvalue;
}

function WMHideLayer(layerName){

 if (document.layers) {
	firstBit='document.layers["';
	secondBit='"]';
	styleRef='';
	leftVar='.left';
	topVar='.top';
	heightVar='.clip.height';
	widthVar='.clip.width';
	
	mIncrement = 20;
} else if (document.all) {
	firstBit='document.all["';
	secondBit='"]';
	styleRef='.style';
	leftVar='.posLeft';
	topVar='.posTop';
	heightVar='.clientHeight';
	widthVar='.clientWidth';
	
	mIncrement = 4;
} else if (document.getElementById) {
	firstBit='document.getElementById("';
	secondBit='")';
	styleRef='.style';
	leftVar='.left';
	topVar='.top';
	heightVar='.clientHeight';
	widthVar='.clientWidth';
	mIncrement = 4;
}

	eval(firstBit+layerName+secondBit+styleRef+'.visibility="hidden"');
}





function processClicks() {
	WMLeaveMenu();
}

if (window.Event) // Navigator 4.0x
	document.captureEvents(Event.MOUSEUP);
document.onmouseup = processClicks;