/* // I switch the display of elements in a page by ID (colapse - expand) */
if(document.all && !document.getElementById) {
	document.getElementById = function(id) {
		return document.all[id];
	}
}
function appear(theobj,bool) {
	var obj=document.getElementById(theobj);
	//obj.style.display=(bool)?"none":"block";
    if(bool){
      if (obj.style.display == "none") {
        obj.style.display = "block";
      }
    }else{
      if ((obj.style.display == "")||(obj.style.display == "block")){
        obj.style.display = "none";
	  }
    }
}