var isIE = document.all;

function OcultarCapas(capa){
	var i;
	var numcapas=6;
	
	if(isIE){
 		for(i=1;i<=numcapas;i++){
			document.all['Layer'+i].style.display='none';
		}
		
		document.all['Layer'+parseInt(capa)].style.display='block';
	}
	else{
 		for(i=1;i<=numcapas;i++){
			document.getElementById('Layer'+i).style.display='none';
		}	
		document.getElementById('Layer'+parseInt(capa)).style.display='block';
	}	
}

function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MostrarPOPUP(){
	off_set=0;

	var myWidth = 0, myHeight = 0;
	if( typeof( window.innerWidth ) == 'number' ) {
		myWidth = window.innerWidth; myHeight = window.innerHeight;
	} else if( document.documentElement && ( document.documentElement.clientWidth ||document.documentElement.clientHeight ) ) {
		myWidth = document.documentElement.clientWidth; myHeight = document.documentElement.clientHeight;
	} else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
		myWidth = document.body.clientWidth; myHeight = document.body.clientHeight;
	}

	if(isIE){

			document.all['popup'].style.top=(parseInt(myHeight)/2)-(parseInt(document.all['popup'].style.height)/2)+(document.body.scrollTop);
			document.all['popup'].style.left=(parseInt(myWidth)/2)-(parseInt(document.all['popup'].style.width)/2);
	}
	else{
			document.getElementById('popup').style.top=(parseInt(myHeight)/2)-(parseInt(document.getElementById('popup').style.height)/2)+(window.scrollY)+'px';
			document.getElementById('popup').style.left=(parseInt(myWidth)/2)-(parseInt(document.getElementById('popup').style.width)/2)+'px';
	}
}

function MM_showHideLayers() { //v6.0
  var i,p,v,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];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
	
	MostrarPOPUP();
}