function Check_Link_Enabled(btnID,todo){
var div_id = btnID.replace(/btw_/, "");
	if (document.getElementById(div_id).style.display != "block"){
	if (todo == "on"){swapOver(btnID);}
	else{swapOut(btnID);}
	}
}


function hideInfo(id){
	var btnID = "btw_"+id;
	document.getElementById(btnID).src = "images/site/"+btnID+"_1.gif";
	hide(id);
}

function showInfo(id){
	var btnID = "btw_"+id;
	document.getElementById(btnID).src = "images/site/"+btnID+"_3.gif";
	show(id);
}


function hide(id){
			//safe function to hide an element with a specified id
			if (document.getElementById) { // DOM3 = IE5, NS6
				document.getElementById(id).style.display = 'none';
			}
			else {
				if (document.layers) { // Netscape 4
					document.id.display = 'none';
				}
				else { // IE 4
					document.all.id.style.display = 'none';
				}
			}
}

function show(id){
			//safe function to show an element with a specified id
			if (document.getElementById) { // DOM3 = IE5, NS6
				document.getElementById(id).style.display = 'block';
			}
			else {
				if (document.layers) { // Netscape 4
					document.id.display = 'block';
				}
				else { // IE 4
					document.all.id.style.display = 'block';
				}
			}
}


function swapOver(btnID){
	document.getElementById(btnID).src = "images/site/"+btnID+"_2.gif";
}
function swapOut(btnID){
	document.getElementById(btnID).src = "images/site/"+btnID+"_1.gif";
}