function target_blank() {
	if (!document.getElementsByTagName) {
		return;
	}
	var anchors = document.getElementsByTagName("a");
	for (var i=0; i < anchors.length; i++) {
		var anchor = anchors[i];
		if (anchor.getAttribute("href") && anchor.getAttribute("rel") == "external") {
			anchor.target = "_blank";
		}
	}
}

function arranque() {
	target_blank();
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

function isDefined(property) {
return (typeof property != 'undefined');
}

var rolloverInitialized = false;
function rolloverInit() {
if (document.getElementById) {
inputs = document.getElementsByTagName("input");

for (i=0; i<inputs.length; i++) {
node = inputs[i];
if ((node.type == 'button' || node.type == 'submit' || node.type == 'reset') && node.className == 'form_btn1') {//miro todos los input-button, input-reset, input-submit que tengan el estilo form_btn1
node.onmouseover=function() {
this.className="form_btn1_over";//hay que crear un estilo con este nombre y ponerselo a los botones que quieras que tengan rollover
}
node.onmouseout=function() {
this.className="form_btn1";//hay que crear este estilo
}
}
}
}
rolloverInitialized = true;
}

// call rolloverInit when document finishes loading
if (isDefined(window.addEventListener)) {
window.addEventListener('load', rolloverInit, false);
}
else if (isDefined(window.attachEvent)) {
window.attachEvent('onload', rolloverInit);
}

function getElementbyClass(classname){ 
 var inc=0; 
 var customcollection=new Array(); 
 var alltags=document.all? document.all : document.getElementsByTagName("*"); 
 for (i=0; i<alltags.length; i++){ 
   if (alltags[i].className==classname) 
     customcollection[inc++]=alltags[i]; 
 } 
 return customcollection;
}