function openWin(uri,w,h,l,t,_options)
	{
		if (!uri) return false;
		if (!w) w=400;
		if (!h) h=500;
		if (!l) l=10;
		if (!t) t=10;
		if (!_options)	_options='scrollbars=no,resizable=1,status=0';
		window.open(uri,"_blank","width="+w+",height="+h+",left="+l+",top="+t+","+_options) 
	}
	
function changeImageFromParent(uri,_this)
	{
		if (!uri) return false;

		if (_this && _this.firstChild && _this.firstChild.tagName && _this.firstChild.tagName.toLowerCase) //DOM ?
			{
				if (_this.firstChild.tagName.toLowerCase() == 'img') // <img... ?
				_this.firstChild.src = uri;//set src="...">
				return true;
			}

		//IE 4+ (?)
		if (!window || !window.event || !window.event.srcElement || !window.event.srcElement.tagName) return false;
		if (window.event.srcElement.tagName.toLowerCase() != 'img') return false;
		window.event.srcElement.src = uri;
		return true;
	}
	
function changeImageFromSubmit(uri,_this)
	{
		if (uri && _this && _this.src) _this.src = uri;
	}

var NS = (document.layers) ? 1 : 0;
var IE = (document.all) ? 1: 0;
var DOM = (document.getElementById) ? 1: 0;

function show_layer(x)
{
	if(NS) { document.layers[x].visibility="show"; } else if (IE) {	document.all[x].style.visibility="visible";	} else {document.getElementById(x).style.visibility="visible";}
}
function hide_layer(x)
{
	if(NS) {document.layers[x].visibility="hide";} else if (IE) {document.all[x].style.visibility="hidden";}else {document.getElementById(x).style.visibility="hidden";}
}

function on(name){
	document[name].src = eval(name + "on.src");
}
function off(name){
	document[name].src = eval(name + ".src");
}
function selectCheckbox(id) 
{
	
	if (document.getElementById(id).checked == true) {
		document.getElementById(id).checked = false;
	} else {
		document.getElementById(id).checked = true;
	}
}