function abrirVentana (url, name, rs, w, h, s) {
  var resize = "";
  if (rs) {
    resize = "resizable,";
  }
  window.open(url, name, 'status=1,menubar=0,' + resize + 'width=' + w + ',height=' + h + ',scrollbars=' + s);
}

function addEvent(obj, evType, fn){
 if (obj.addEventListener){
    obj.addEventListener(evType, fn, false);
    return true;
 } else if (obj.attachEvent){
    var r = obj.attachEvent("on"+evType, fn);
    return r;
 } else {
    return false;
 }
}

function removeEvent(obj,type,fn){
  if(obj.removeEventListener) {
  	obj.removeEventListener(type,fn,false);
  }
  else if(obj.detachEvent){
    var r = obj.detachEvent("on"+type, fn);
    return r;
  }
}

function checkMail(x){
	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if (filter.test(x)) return 1;
	else return 0;
}


function trim(s){

	while((s.charAt(0)==" ")||(s.charAt(0)=="\t")){
		s=s.substring(1,s.length)
	}
	while((s.charAt(s.length-1)==" "||s.charAt(s.length-1)=="\t")){
		s=s.substring(0,s.length-1)
	}

	return s

}