function lib_bwcheck(){ //Browsercheck (needed)
	this.ver=navigator.appVersion
	this.agent=navigator.userAgent
	this.dom=document.getElementById?1:0
	this.opera5=(navigator.userAgent.indexOf("Opera")>-1 && document.getElementById)?1:0
	this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom && !this.opera5)?1:0; 
	this.ie6=(this.ver.indexOf("MSIE 6")>-1 && this.dom && !this.opera5)?1:0;
	this.ie4=(document.all && !this.dom && !this.opera5)?1:0;
	this.ie=this.ie4||this.ie5||this.ie6
	this.mac=this.agent.indexOf("Mac")>-1
	this.ns6=(this.dom && parseInt(this.ver) >= 5) ?1:0; 
	this.ns4=(document.layers && !this.dom)?1:0;
	this.bw=(this.ie6 || this.ie5 || this.ie4 || this.ns4 || this.ns6 || this.opera5)
	return this
}
var bw=lib_bwcheck();


function MM_showLayers(layerName) { //v6.0

    var i,v,b;
    
    for (var i in tabArea)
    {
        if (tabArea[i] != layerName)
        {
            obj=MM_findObj(tabArea[i]);
            obj.style.visibility = "hidden";
            obj.style.display = "";
        }
    }
    
    var obj=MM_findObj(layerName);
    if (obj!=null) 
    { 
        if (obj.style) 
        { 
            obj=obj.style;
            if (obj.visibility != 'visible')
                obj.visibility = "visible";
            else
                obj.visibility = "hidden";
            
            if (obj.display != 'inline')
                obj.display = "inline";
            else
                obj.display = "";
        }
    }
}

function MM_showHideLayers() { //v6.0

    var i,p,v,b,obj,args=MM_showHideLayers.arguments;
    for (i=0; i<(args.length-2); i+=3) 
        if ((obj=MM_findObj(args[i]))!=null) 
        { 
            v=args[i+2]; 
            b=v;
            if (obj.style) 
            { 
                obj=obj.style; 
                v=(v=='show')?'visible':(v=='hide')?'hidden':v; 
                b=(b=='show')?'inline':(b=='hide')?'':b; 
            }
            obj.visibility=v; 
            obj.display=b; 
        }
}