var nav = (navigator.appName == "Microsoft Internet Explorer") ? "ie" : "ns";
if(nav=="ns"){
origWidth=innerWidth;origHeight=innerHeight;onresize=function(){if(innerWidth!=origWidth||innerHeight!=origHeight)location.reload()}
if (parseInt(navigator.appVersion)>=5) nav="ns6";
}

function ref(nom_capa)
  {
    if (nav == "ie") return "document.all['" + nom_capa + "'].style.";
    if (nav == "ns") return "document." + nom_capa + ".";
	if (nav == "ns6") return "document.getElementById('" + nom_capa + "').style.";
  } 

function veure(nom_capa)
  {
    eval(ref(nom_capa) + "visibility = 'visible'");
  }


function amagar(nom_capa)
  {
    eval(ref(nom_capa) + "visibility = 'hidden'");
  }
 

function mourecapa(capa,posx,posy)
{
        if (nav=="ns") {
                eval("document."+capa+".left=posx;");
                eval("document."+capa+".top=posy;");
        }
        else {
                eval(capa+".style.pixelLeft=posx;");
                eval(capa+".style.pixelTop=posy;");
        }
}


function clipcapa(capa,arr,der,aba,izq)
{
        if (nav=="ns") {
                eval("document."+capa+".clip.top=arr;");
                eval("document."+capa+".clip.right=der;");
                eval("document."+capa+".clip.bottom=aba;");
                eval("document."+capa+".clip.left=izq;");
        }
        else {
                eval(capa+".style.clip='rect("+arr+"px "+der+"px "+aba+"px "+izq+"px)'");
        }
}