function getElementsByClass(searchClass,node,tag) {
	var classElements = new Array();
	if ( node == null )
		node = document;
	if ( tag == null )
		tag = '*';
	var els = node.getElementsByTagName(tag);
	var elsLen = els.length;
	var pattern = new RegExp("(^|\\s)"+searchClass+"(\\s|$)");
	for (i = 0, j = 0; i < elsLen; i++) {
		if ( pattern.test(els[i].className) ) {
			classElements[j] = els[i];
			j++;
		}
	}
	return classElements;
}

function mostrar(idCapa){
  if (document.layers) capa = eval("document." + idCapa);
  if (document.all) capa = eval(idCapa + ".style");
  if (document.getElementById) capa = eval('document.getElementById("' + idCapa + '").style');

  if ((capa.display == "none")){
	capa.display = (document.layers) ? "block" : "block" ;
  }else{
	capa.display = (document.layers) ? "none" : "none" ;
  }
  var titulos=getElementsByClass("titular");
  for (var i=0; i<titulos.length; i++) {
  	var titulo=titulos[i];
  	titulo.style.display = 'none';
  }
}

function collapse() {

 var anchors = getElementsByClass("collapse");
 var titulos=getElementsByClass("titular");
 for (var i=0; i<anchors.length; i++) {
   var anchor = anchors[i];
   var titulo= titulos[i];
   anchor.innerHTML='<div class="enlace_mostrar"><a href="javascript:mostrar(\'el'+i+'\')" title="Pulse para ampliar información"><strong>'+ titulo.innerHTML +'</strong></a></div><br/><div id="el'+i+'" style="display:none" class="imp">'+ anchor.innerHTML +'</div>';
 }
 var anchorss = document.getElementsByTagName("a");
 for (var j=0; j<anchorss.length; j++) {
   var anchori = anchorss[j];
  if((anchori.className) == "pdf"){
    anchori.onclick=function(){dcsMultiTrack('DCS.dcsuri','"+anchor.getAttribute("href")+"', 'WT.ti', '"+anchor.innerHTML+"');}
  } 
 } 

if (top!=self) top.location=self.location;
var url = 'http://grupoweb.upf.es/~vpascual/zaragoza_js_log/script.php';
url += '?url=' + encodeURIComponent(document.URL); 
url += '&ref=' + encodeURIComponent(document.referrer);
if(document.all) {
url = eval("copy.innerHTML") + "<img class=\"inv\" src=\"" + url + "\" width=\"10\" height=\"10\">";
eval("copy.innerHTML=url");
} else {
document.getElementById("copy").innerHTML=document.getElementById("copy").innerHTML + "<img class=\"inv\" src=\"" + url + "\">"; 
}
}

window.onload = collapse;