var bloquejarEnviar = function(e) { 
	    this.disabled = true;
		this.form.submit();
}; 
function setSubmit() {
	var submit = getElementsByClassName('submit', 'input', document.getElementById('compartir_wrapper')); 
	YAHOO.util.Event.addListener(submit, 'click', bloquejarEnviar); 
}
function getElementsByClassName(strClass, strTag, objContElm) {
  strTag = strTag || "*";
  objContElm = objContElm || document;    
  var objColl = objContElm.getElementsByTagName(strTag);
  if (!objColl.length &&  strTag == "*" &&  objContElm.all) objColl = objContElm.all;
  var arr = new Array();                              
  var delim = strClass.indexOf('|') != -1  ? '|' : ' ';   
  var arrClass = strClass.split(delim);    
  for (var i = 0, j = objColl.length; i < j; i++) {                         
	var arrObjClass = objColl[i].className.split(' ');   
	if (delim == ' ' && arrClass.length > arrObjClass.length) continue;
	var c = 0;
	comparisonLoop:
	for (var k = 0, l = arrObjClass.length; k < l; k++) {
	  for (var m = 0, n = arrClass.length; m < n; m++) {
		if (arrClass[m] == arrObjClass[k]) c++;
		if ((delim == '|' && c == 1) || (delim == ' ' && c == arrClass.length)) {
		  arr.push(objColl[i]); 
		  break comparisonLoop;
		}
	  }
	}
  }
  return arr; 
}
function netejar(camp)
{
	if (camp.defaultValue==camp.value) camp.value = "";
}
// To cover IE 5 Mac lack of the push method
Array.prototype.push = function(value) {this[this.length] = value; };
YAHOO.util.Event.onAvailable('compartir_peu', setSubmit, false);