// JavaScript Document

function PKswapImage(id, newsrc) {
                
                var eleObj = document.getElementById(id);
                eleObj.src = newsrc;

}

function checkUsername(username) {
	var element = document.getElementById('username_taken');
	//var lightbox = document.getElementById('system_lightbox');

	advAJAX.get({
		url: "page.php",
		mimeType : 'text/plain', 
		parameters : {
			  "username_taken" : username
		},
		onSuccess : function(obj) { 
  				 // new Effect.Fade('system_lightbox');	
				  element.innerHTML = obj.responseText; },
		onError : function(obj) { alert("Error: " + obj.status); }
		});
}