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


var state = '0'; 

function showLoginDiv() { 
	if (state == '40px') { 
		state = '0'; //state = 'none'; 
	} else { 
		state = '40px'; //state = 'block'; 
	} 
	if (document.all) { //IS IE 4 or 5 (or 6 beta) 
		eval( "document.all.wbLoginDiv.style.height = state"); 
	} 
	if (document.layers) { //IS NETSCAPE 4 or below 
		document.layers["wbLoginDiv"].height = state; 
	} 
	if (document.getElementById &&!document.all) { 
		hza = document.getElementById("wbLoginDiv"); 
		hza.style.height = state; 
	}
}