function tamany_finestra(){
if (document.layers){winW = window.innerWidth-17;}
else{	if (navigator.appName == "Microsoft Internet Explorer"){winW = document.body.offsetWidth-10;}
		else {	if (document.getElementById){winW = window.innerWidth+5;}
				else {winW = window.innerWidth;}
}}
}


function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}



var nav="";

function navegador(){
if(document.layers){//NS4
	nav="ns4";}
	else if(document.getElementById){//IE 5 i posteriors i NS6
		nav="ie5ns6"}
		else if(document.all && !document.getElementById){
			nav="ie4"} //anteriors a IE 5
}


function ref(nom_capa){
    if (nav == "ie5ns6") return "document.getElementById('" + nom_capa + "').style."
 	else 	if (nav == "ie4") return "document.all['" + nom_capa + "'].style."
			else return "document." + nom_capa + "."
} 

function ref2(nom_capa){
    if (nav == "ie5ns6") return "document.getElementById('" + nom_capa + "').style."
	else  	if (nav == "ie4") return "document.all['" + nom_capa + "'].style."
			else return "document.contenidor.document." + nom_capa + "."

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

function veure2(nom_capa){
	eval(ref2(nom_capa) + "visibility = 'visible'");     
}


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

function amagar2(nom_capa){
    eval(ref2(nom_capa) + "visibility = 'hidden'");
}

function mourecapa(capa,posx,posy){
   	if (nav=="ns4" || nav=="ie5ns6") {
        eval(ref(capa) + "left=posx;");
        eval(ref(capa) + "top=posy;");
  	}
    else {
    	eval(ref(capa) + "pixelLeft=posx;");
        eval(ref(capa) + "pixelTop=posy;");
    }
}


function mourecapa2(nom_capa,capa_mare,posxa,posya){
   	if (nav=="ns4" || nav=="ie5ns6") {
		
        eval(ref2(nom_capa,capa_mare) + "left=posxa;");
        eval(ref2(nom_capa,capa_mare) + "top=posya;");
  	}
    else {
    	eval(ref2(nom_capa,capa_mare) + "pixelLeft=posxa;");
        eval(ref2(nom_capa,capa_mare) + "pixelTop=posya;");
    }
}

function clipcapa(capa,arr,der,aba,izq){
  	if (nav=="ns4") {
    	eval(ref(capa) + "clip.top=arr;");
        eval(ref(capa) + "clip.right=der;");
        eval(ref(capa) + "clip.bottom=aba;");
        eval(ref(capa) + "clip.left=izq;");
   	}
    else {
        eval(ref(capa) + "clip='rect("+arr+"px "+der+"px "+aba+"px "+izq+"px)'");
    }
}

function clipcapa2(nom_capa,capa_mare,arr,der,aba,izq){
  	if (nav=="ns4") {
    	eval(ref2(nom_capa,capa_mare) + "clip.top=arr;");
        eval(ref2(nom_capa,capa_mare) + "clip.right=der;");
        eval(ref2(nom_capa,capa_mare) + "clip.bottom=aba;");
        eval(ref2(nom_capa,capa_mare) + "clip.left=izq;");
   	}
    else {
        eval(ref2(nom_capa,capa_mare) + "clip='rect("+arr+"px "+der+"px "+aba+"px "+izq+"px)'");
    }
}


function obre(desti,am,al,nom){
  var ampla = am;
  var altura = al;
  strURL = desti;
  poshoritz = (screen.width) ? (screen.width-ampla)/2 : 0;
  posvert = (screen.height) ? (screen.height-altura)/2 : 0;
  strW = 'toolbar=0,directories=0,location=0,status=no,menubar=0,resizable=false,copyhistory=yes,scrollbars=yes,width='+ ampla + ',height='+ altura + ',top='+ posvert + ',left='+ poshoritz;
  eval("window.open('" + strURL + "',nom,'" + strW + "')");
}