function nuevoAjax(){
	var xmlhttp=false;
 	try {
 		xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
 	} catch (e) {
 		try {
 			xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
 		} catch (E) {
 			xmlhttp = false;
 		}
  	}

	if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
 		xmlhttp = new XMLHttpRequest();
	}
	return xmlhttp;
}

function removeChildrenFromNode(e) {
   
if(!e) {
  
              return false;
   
          }
  
          if(typeof(e)=='string') {
  
              e = xGetElementById(e);
   
          }
   
          while (e.hasChildNodes()) {
   
              e.removeChild(e.firstChild);
  
          }
 
          return true;
  
      }




function hideAllByTag(info) {
        element=document.getElementById(info);
		var elements = element.getElementsByTagName("fieldset");
        var i = 0;
        while (i < elements.length) {
                elements[i].style.display = "none";
                i++;
                }
}