// menu principal
sfHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);

// enlaces externos
function prepareTargetBlank(){
	   var className = 'spip_out';
   var as = document.getElementsByTagName('a');
   for(i=0;i<as.length;i++){
      var a = as[i];
      r=new RegExp("(^| )"+className+"($| )");
      if(r.test(a.className)){
         a.onclick = function(){
            window.open(this.href);
            return false;
         }
      }
    }
}
   
window.onload = prepareTargetBlank;