function setAttr(element,atributo,valor)
{
  if (navigator.appName == "Microsoft Internet Explorer")
  {
    att = document.createAttribute(atributo);
    att.value=valor;
	element.setAttributeNode(att);
  }else{
    element.setAttribute(atributo,valor);
  }
}
function onMouse(obj){
	xGetElementById(obj).style.display = "block";	
}
function outMouse(obj){
	xGetElementById(obj).style.display = "none";	
}