function getDiv_dom(name) {
    return document.getElementById(name);
}
function getDiv_ie4(name) {
    return document.all[subdiv];
}
function getDiv_ns4(name,nest) {
    return nest?document[nest].document[name] : document[name];
}

function getMouseEvent_ie() {
    var me = new Object();
    me.x = window.event.clientX;
    me.y = window.event.clientY;
    me.documentX = window.event.clientX + document.body.scrollLeft;
    me.documentY = window.event.clientY + document.body.scrollTop;
    return me;
}

function getMouseEvent_ns(e) {
    e.x = e.pageX;
    e.y = e.pageY;
    e.documentX = e.x;// + window.pageXOffset;
    e.documentY = e.y;// + window.pageYOffset;
    return e;
}

function Browser() {
	this.ver=navigator.appVersion

	this.description = "(" + navigator.appVersion +")";
	this.dom=document.getElementById?1:0
	
	this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom)?1:0;
	this.ns5=(this.dom && parseInt(this.ver) >= 5) ?1:0;
    if (this.ns5) this.description += " NS5";
    this.ie4=(document.all && !this.dom)?1:0;
	this.ns4=(document.layers && !this.dom)?1:0;
	this.bw=(this.ie5 || this.ie4 || this.ns4 || this.ns5);
	this.width=screen.width;
    if (this.ns4) {
        this.getDiv = getDiv_ns4;
        this.description = " NS4";
    }
    if (this.ver.indexOf("MSIE") > -1)
        this.getMouseEvent = getMouseEvent_ie;
    else
        this.getMouseEvent = getMouseEvent_ns;
        
    if (this.ie4) {
       this.getDiv = getDiv_ie4; 
       this.description += " IE4"
    }
	if (this.dom) {
        this.getDiv = getDiv_dom;	
        this.description += " Supports DOM";
	}

	return this;
}
function togglePopupDiv(e,subdiv)
{
    var bw = new Browser();
    var obj = bw.getMouseEvent(e);

    var div = bw.getDiv('hd_' + subdiv);
    
	var sty = div.style;
	if (sty.visibility == 'hidden')
	    sty.visibility = 'visible';
	else
	    sty.visibility = 'hidden'; 
}
function toggleDiv(e,subdiv,show)
{
    var bw = new Browser();
    var obj = bw.getMouseEvent(e);



    var div = bw.getDiv('hd_' + subdiv);
    if (div == null) return;   




	if (self.innerWidth)
	{
		frameWidth = self.innerWidth;
		frameHeight = self.innerHeight;
	}
	else if (document.documentElement && document.documentElement.clientWidth)
	{
		frameWidth = document.documentElement.clientWidth;
		frameHeight = document.documentElement.clientHeight;
	}
	else if (document.body)
	{
		frameWidth = document.body.clientWidth;
		frameHeight = document.body.clientHeight;
	}

	if (div.innerWidth)
	{
		divWidth = div.innerWidth;
		divHeight = div.innerHeight;
	}
	else if (div.clientWidth)
	{
		divWidth = div.clientWidth;
		divHeight = div.clientHeight;
	} else {
		divWidth = 200;
		divHeight = 100;
		} 




	var sty = div.style;
	//alert("divHeight=" + divHeight + ", client width = "  + divWidth + ", x = " + obj.x + ", framewidth = " + frameWidth);

	var offset = 5;
	sty.left = (obj.documentX + offset + divWidth + 20) > frameWidth ?  obj.documentX - divWidth - offset : obj.documentX + offset ;
	sty.top = obj.documentY - divHeight - offset - 20 < 0 ? obj.documentY + offset : obj.documentY - divHeight - offset;
	
	if (show == null) {
		if (sty.visibility == 'hidden')
		    sty.visibility = 'visible';
		else
	    	sty.visibility = 'hidden'; 
	} else {
		if (show)
			sty.visibility = 'visible';
		else
			sty.visibility = 'hidden';
	}

	    
	var iframe = bw.getDiv('if_' + subdiv);
	if (iframe) {
		var sty = iframe.style;
		
		sty.left = div.style.left;
		sty.top = div.style.top;
		sty.width = 200;
		sty.height = divHeight + 2;
		if (sty.visibility == 'hidden')
		    sty.visibility = 'visible';
		else
		    sty.visibility = 'hidden'; 
	}
	
}