function toggleBox(isLoggedIn){
	var thediv=document.getElementById('displaybox');
	if(thediv.style.display == "none"){
		thediv.style.display = "";
		thediv.innerHTML = "<table width='100%' height='100%' id='displayboxtable'><tr><td align='center' valign='middle' width='100%' height='100%'><br><br></td></tr></table></div>";
	}else{
		thediv.style.display = "none";
		thediv.innerHTML = '';
	}
	return false;
}// Shows a layer according to name


function hideOverlayLayer(layerOverlayName) {  
	if (document.getElementById) {
    		document.getElementById(layerOverlayName).style.visibility = "hidden";
  		} 
	}
	
function showOverlayLayer(layerOverlayName) {  
	if (document.getElementById) {
    		document.getElementById(layerOverlayName).style.visibility = "visible";
  		} 
	}