var preloadFlag = false;

function simplePreload(){ 
	var args = simplePreload.arguments;
	document.imageArray = new Array(args.length);
	for(var i=0; i<args.length; i++)
	{
	document.imageArray[i] = new Image;
	document.imageArray[i].src = args[i];
	}
}
function changeImages(){
	if (document.images && (preloadFlag==true)){
		for (var i=0;i<changeImages.arguments.length;i+=2){
			document[changeImages.arguments[i]].src=changeImages.arguments[i+1];
		}
	}
}

function cosa(DI){
	if (document.getElementById){
		return document.getElementById(DI) 
	}else{
		if (document.all){
			return document.all(DI) 
		}
	}
}
function vismsg(divdesc){
			
	for(var n=0;n<=5;n++) {
		if (cosa('d'+n)){
			cosa('d'+n).style.display='none';

		}
	
	}
	if (	cosa('d'+divdesc)){
		cosa('d'+divdesc).style.display='block';
	}
}
function openw(url,w,h){
   	x = 300
   	y = 200
   	if (screen){
      	y = (screen.height - 2*h)/2;
    	x = (screen.width - w)/2;
   	}
	fin=window.open(url,'view','toolbar=no,top='+y+',left='+x+',width='+w+',height='+h+',directories=no,status=no,menubar=no,scrollbars=no,resizable=no').focus()
}

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