var pim=new Array();
var total_menus=7;

function p_load(nm,im)
{
	var ar_split=im.split(".");
	ar_split[0]+="_a";
	pim[nm]=new Object();
	pim[nm].n=new Image();
	pim[nm].n.src=im;
	pim[nm].a=new Image();
	pim[nm].a.src=ar_split.join(".");
}

p_load("p1","/i/m/about.gif");
p_load("p2","/i/m/inv_info.gif");
p_load("p3","/i/m/services.gif");
p_load("p5","/i/m/analytics.gif");
p_load("bg","/i/m/bg.gif");
p_load("lf","/i/m/lf2.gif");

function bw()
{
	this.browser=navigator.userAgent;
	this.version=navigator.appVersion;
	this.DOM_bw=document.getElementById?1:0
	this.ie5=(this.version.indexOf("MSIE 5")>-1 && this.DOM_bw)?1:0; 
	this.ie6=(this.version.indexOf("MSIE 6")>-1 && this.DOM_bw)?1:0;
	this.ie4=(document.all && !this.DOM_bw)?1:0;
	this.ie=this.ie4||this.ie5||this.ie6;
	return this;
}
var myBrowser=new bw()

function GetMObject(nm)
{
	if(myBrowser.DOM_bw) return document.getElementById(nm);
	else if(myBrowser.ie) return document.all[nm];
	else return null;
}

function CollapseAll()
{
	var obj,obj1;
	
	for(var i=1;i<=total_menus;i++)
	{
		obj=GetMObject('para'+i);
		obj1=GetMObject('child'+i);
		if(obj && obj1)
		{
			obj.style.backgroundImage="url("+pim["bg"].n.src+")";
			obj1.style.display="none";
			document.images["paraimg"+i].src=pim["p"+i].n.src;
		}
	}
	document.images["spic"].src=pim["lf"].n.src;
}

function ToggleMenu(mid)
{
	var obj;
	var tog=true;
	
	obj=GetMObject('para'+mid);
	obj1=GetMObject('child'+mid);
	
	if(obj && obj1)
	{
		if(myBrowser.ie && obj1.style.display!=null)
		{
			var check=(obj1.style.display=="none");
			CollapseAll();
			if(check)
			{
				obj.style.backgroundImage="url("+pim["bg"].a.src+")";
				document.images["paraimg"+mid].src=pim["p"+mid].a.src;
				obj1.style.display="block";
				if(mid==1) document.images["spic"].src=pim["lf"].a.src;
			}
			tog=false;
		}
	}
	return tog;
}