ns = (document.layers)? true:false
ie = (document.all)? true:false
ns6 = (navigator.appName == "Netscape" && document.getElementById)? true:false

function hide(id){
	if (ns) document.layers[id].visibility = "hide"
	if (ns6){
		var obj = eval("document.getElementById('" + id + "')")
		obj.style.visibility = "hidden"
	}
	else if (ie) document.all[id].style.visibility = "hidden"
}
function show(id){
	if (ns) document.layers[id].visibility = "show"
	if (ns6){
		var obj = eval("document.getElementById('" + id + "')")
		obj.style.visibility = "visible"
	}
	else if (ie) document.all[id].style.visibility = "visible"
}
function reset(div){
	refresh()
	eval("show('" + div + "')")
	showHide()
}
function showHide(){
	show('tophide')
	show('lefthide')
	show('bothide')
}
function refresh(){
	if(ie){
		var divs = document.all.tags("div")
		for(var i = 0; i < divs.length; i++){
			if(divs[i].style.visibility == "visible"){
				divs[i].style.visibility = "hidden"
			}
		}
	}
	if(ns6){
		divs = document.getElementsByTagName("div")
		for(var i = 0; i < divs.length; i++){
			if(divs[i].style.visibility == "visible"){
				divs[i].style.visibility = "hidden"
			}
		}
	}
	else if(ns){
		divs = document.layers
		for(var i = 0; i < divs.length; i++){
			if(divs[i].visibility == "show"){
				divs[i].visibility = "hide"
			}
		}
	}
}
function swap(a,b){
eval("document." + a + ".src=" + b + ".src")
}
function checkL(divNumb,total,focus){
	for(var i = 1; i <= total; i++){
		if(i == focus){
			continue
		}
		eval("hide('" + divNumb + i + "')")
	}
}