if (window.ccs == null) {
   window.ccs = new Object();
}
if (window.ccs.pnp == null) {
	   window.ccs.pnp = new Object();
	}
/**
 * @author phillipa
 */
ccs.pnp.HomepageConcertina = function(){
	var self;
	var currentlyOpen = "";
	var currentBeforeCloseFunction = null;
	
	
	function constructorFn(){
		self = this;
	}
	
	constructorFn.prototype.switchState = function(divId, isLastItem, afterFinishFunction, beforeCloseFunction) {
		if (currentlyOpen != divId) {
			if (currentlyOpen != null) {	
				Effect.BlindUp(currentlyOpen + "_open", { beforeStart: currentBeforeCloseFunction });
			}			
			Effect.BlindDown(divId + "_open", { afterFinish: afterFinishFunction });
			$(divId + "_img").src = $(divId + "_img").src.replace("_inactive", "_active");
			if (currentlyOpen != null) {					
				$(currentlyOpen + "_img").src = $(currentlyOpen + "_img").src.replace("_active", "_inactive");
			}
/*			
			if (isLastItem) {
				$("slider_bottom").src = $("slider_bottom").src.replace("_inactive", "_active");
			} else {
				$("slider_bottom").src = $("slider_bottom").src.replace("_active", "_inactive");
			}
*/
			currentlyOpen = divId;
			currentBeforeCloseFunction = beforeCloseFunction;			
		} else {
			// if they clicked on the currently open view, do nothing (you can't close a div without opening a different div)
		}
	}	
	
	constructorFn.prototype.init = function() {
		currentlyOpen = "welcome";
		currentBeforeCloseFunction = null;
		if (ccs.user.isLoggedIn) {
			self.switchState('login', false);
		}		
		
	}
	
	return new constructorFn();
}
ccs.pnp.hc = new ccs.pnp.HomepageConcertina();