var ns4, ie4, ns6;
var loaded = 0;
var gotlayers = 0;
var lastbutton='top';
var lastmenu='topmen';
var iPosX, iPosY;

ns4 = (document.layers)? true:false
ie4 = (document.all)? true:false

ns6=false;

if ( !document.all && document.getElementsByTagName)
{
	document.all=document.getElementsByTagName("*");
	ns6=true;
}


function hide() {
	if (document.images && (loaded == 1)) {
		changeImages(lastbutton,0);
	}
}

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function FindImage(doc, name, j) {
    var theImage = null;

    if (doc.images) {

        theImage = doc.images[name];
    }

    if (theImage==null && doc.layers) {
        for (j = 0; j < doc.layers.length && theImage==null; j++) {
            theImage = FindImage(doc.layers[j].document, name, 0);
        }
    }
    return theImage;
}

function change(Name, No) 
{        
    if (document.images && loaded == 1) 
    {       
        var theImage = FindImage(document, Name, 0);
        if (theImage) 
        {            
            theImage.src = eval("img_" + Name + No + ".src");
        }
    }
}

function preloadImages(sRelPath) 
{
	if (document.images) 
    {
		img_home0 = newImage(sRelPath+"images/homebuta.gif");		
		img_home1 = newImage(sRelPath+"images/homebutb.gif");

		img_login0 = newImage(sRelPath+"images/loginbuta.gif");		
		img_login1 = newImage(sRelPath+"images/loginbutb.gif");
	
		img_reg0 = newImage(sRelPath+"images/regbuta.gif");		
		img_reg1 = newImage(sRelPath+"images/regbutb.gif");	

		img_about0 = newImage(sRelPath+"images/aboutbuta.gif");		
		img_about1 = newImage(sRelPath+"images/aboutbutb.gif");	

		img_help0 = newImage(sRelPath+"images/helpbuta.gif");		
		img_help1 = newImage(sRelPath+"images/helpbutb.gif");	

		img_terms0 = newImage(sRelPath+"images/termsbuta.gif");		
		img_terms1 = newImage(sRelPath+"images/termsbutb.gif");	

		img_back0 = newImage(sRelPath+"images/backbuta.gif");		
		img_back1 = newImage(sRelPath+"images/backbutb.gif");	

                img_enlarge0 = newImage(sRelPath+"images/enlargebutton.gif");
                img_enlarge1 = newImage(sRelPath+"images/enlargebutton_white.gif");

                img_reduce0 = newImage(sRelPath+"images/reducebutton.gif");
                img_reduce1 = newImage(sRelPath+"images/reducebutton_white.gif");


    	loaded = 1;
	}
}