var current_sc = 1;
var sc_interval = 0;
function menu_hover(el, position) {
	if(YAHOO.util.Dom.hasClass(el, 'sc_active')){
		if(current_sc != position){
    		YAHOO.util.Dom.removeClass(el, 'sc_active');

			sc_hide_all();		
			YAHOO.util.Dom.addClass('sc_info' + current_sc.toString(), 'show');
		}
	} else {
    	YAHOO.util.Dom.addClass(el, 'sc_active');
		if(current_sc != position){
			sc_hide_all();				
			YAHOO.util.Dom.addClass('sc_info' + position.toString(), 'show');
		}
	}
};
function sc_set_active(el, position){
	if(position != current_sc){ // if not already active
		sc_hide_all();
		YAHOO.util.Dom.addClass('sc_info' + position.toString(), 'show');
		sc_menu_remove_active();
		YAHOO.util.Dom.addClass(el, 'sc_active')
		current_sc = position;
	}
}

function sc_set_next_active(){
	var position = current_sc + 1;
	
	if(position > 4){
		position = 1;
	}
	
	var el = YAHOO.util.Dom.get('sc_menu_item' + position.toString());
	sc_set_active(el, position);
}
function sc_menu_remove_active(){
	YAHOO.util.Dom.removeClass('sc_menu_item1', 'sc_active')
	YAHOO.util.Dom.removeClass('sc_menu_item2', 'sc_active')
	YAHOO.util.Dom.removeClass('sc_menu_item3', 'sc_active')
	YAHOO.util.Dom.removeClass('sc_menu_item4', 'sc_active')
}

function sc_hide_all(){
	YAHOO.util.Dom.removeClass('sc_info1', 'show');
	YAHOO.util.Dom.removeClass('sc_info2', 'show');
	YAHOO.util.Dom.removeClass('sc_info3', 'show');
	YAHOO.util.Dom.removeClass('sc_info4', 'show');
	
	YAHOO.util.Dom.addClass('sc_info1', 'hide');
	YAHOO.util.Dom.addClass('sc_info2', 'hide');
	YAHOO.util.Dom.addClass('sc_info3', 'hide');
	YAHOO.util.Dom.addClass('sc_info4', 'hide');
}
function goTo(url){
	window.location.href = url;
}

function runsc(){
	sc_interval = setInterval("sc_set_next_active()", 10000);
}

YAHOO.util.Event.onDOMReady(runsc);