function getObject(objectId) {
  if(document.getElementById && document.getElementById(objectId)) {
// W3C DOM
return document.getElementById(objectId);
  } else if (document.all && document.all(objectId)) {
// MSIE 4 DOM
return document.all(objectId);
  } else if (document.layers && document.layers[objectId]) {
// NN 4 DOM.. note: this won't find nested layers
return document.layers[objectId];
  } else {
return false;
  }
}

function addLoadEvent(func){
	var oldonload = window.onload;
	if (typeof window.onload != 'function') {
		window.onload = func;
	} else {
		window.onload = function(){
			oldonload();
			func();
		}
	}
}

function show(objid){
	document.getElementById(objid).style.display='block';
}
function hide(objid){
	document.getElementById(objid).style.display='none';
	}
function shows(objid){
	document.getElementById(objid).style.display='block';
}
function hides(objid){
	document.getElementById(objid).style.display='none';
	}