ns4=(document.layers)?true:false;
ie4=(document.all)?true:false;
ns6=(document.getElementById)?true:false;
var timer;

function ff(){
	if(ie4){
	document.all['mbase'].style.top = 80;
	}
else if(ns6){return true;}
}

if (ns4) {
		origWidth = innerWidth;
		origHeight = innerHeight;
		}
	function reDo() {
		if (innerWidth != origWidth || innerHeight != origHeight) 
			location.reload();
		}
	if (ns4) onresize = reDo;


function offAll(){
	if(document.images){
	document.images.home.src=homeOff.src;
	document.images.art.src=artOff.src;
	document.images.port.src=portOff.src;
	document.images.faq.src=faqOff.src;
	document.images.links.src=linksOff.src;
	document.images.glossary.src=glossaryOff.src;
	document.images.estimate.src=estimateOff.src;
	document.images.contact.src=contactOff.src;
	}
}


function turnOn(imgName)
	{
		if(document.images)
	{
		imgOn=eval(imgName + "On.src");
		document[imgName].src=imgOn;
	}
}


function turnOff(imgName)
	{
		if(document.images)
	{
		imgOff=eval(imgName + "Off.src");
		document[imgName].src=imgOff;
	}
}

				// SHOW - HIDE

function show(id){
	if(ns4){
	document.layers[id].visibility = "show";
	}
	else if(ie4){
	document.all[id].style.visibility = "visible";
	}
	else if(ns6){
	document.getElementById(id).style.visibility = "visible";
	}
}	
		
function hide(id){
	if(ns4) {
	document.layers[id].visibility = "hide";
	}
	if(ie4){
	document.all[id].style.visibility = "hidden";
	}
	if(ns6){
	document.getElementById(id).style.visibility = "hidden";
	}
}

function mOn(){
	if(ie4)
	{
	document.all.menu.style.top.value="22px";
	document.all.menu.style.display='block';
	}
	else if(ns6){
	document.getElementById("menu").style.top.value="22px";
	document.getElementById("menu").style.display='block';
	}
}

function mOff(){
	if(ie4)
	{
	document.all.menu.style.top.value="25px";
 	timer=setTimeout("document.all.menu.style.display='none'", 500);
	}
	else if(ns6){
	document.getElementById("menu").style.top.value="25px";
	timer=setTimeout("document.getElementById('menu').style.display='none'", 500);
	}
}

					// WRITE TO LAYER 

function rite(foo,text){
clr="<font color='white'>";
fx	="</font>";
if(ie4)	{
		var lyr= document.all[foo];
		lyr.innerHTML=(clr+text+fx);
		}
else if(ns6)
		{
		document.getElementById(foo).innerHTML = (clr+text+fx);
		}
	}

	
function lwrite(id,fcolor,text){
	var fcolor="<font color="+fcolor+">";
	if(ns4){
		var lyr=document.layers[id].document;
		document.layers[id].visibility="show";
		lyr.open(); 
		lyr.write("<font face=arial size=2><b>"+fcolor+text+"</b></font></font>");
		lyr.close()	} 
	else if(ie4){
		var lyr= document.all[id];
		document.all[id].style.visibility="visible";
		lyr.innerHTML=("<font face=arial size=2><b>"+fcolor+text+"</b></font></font>");
		}	}