var addClass = function(id, classe){
	try{
		YAHOO.util.Dom.addClass(id, classe);
	}
	catch(e){};
};

var popup = function(o, params){
	aWindow = window.open(params.url,"Orange","toolbar=no,width="+params.width+",height="+params.height+", status=no,scrollbars="+params.scrollbars+",resize=no,menubars=no");
};

var clearSecondaryMenu = function(){
	try{
		   			YAHOO.util.Dom.setStyle('hd-sec-internet', 'display', 'none');
			YAHOO.util.Dom.setStyle('hd-pri-internet', 'background-image', 'url(http://www.orange.co.bw/images/top_menu_bg.gif)');
			YAHOO.util.Dom.setStyle(YAHOO.util.Dom.get("hd-pri-internet").firstChild, "color", "#000");
		   			YAHOO.util.Dom.setStyle('hd-sec-mobile', 'display', 'none');
			YAHOO.util.Dom.setStyle('hd-pri-mobile', 'background-image', 'url(http://www.orange.co.bw/images/top_menu_bg.gif)');
			YAHOO.util.Dom.setStyle(YAHOO.util.Dom.get("hd-pri-mobile").firstChild, "color", "#000");
		   			YAHOO.util.Dom.setStyle('hd-sec-news', 'display', 'none');
			YAHOO.util.Dom.setStyle('hd-pri-news', 'background-image', 'url(http://www.orange.co.bw/images/top_menu_bg.gif)');
			YAHOO.util.Dom.setStyle(YAHOO.util.Dom.get("hd-pri-news").firstChild, "color", "#000");
		   			YAHOO.util.Dom.setStyle('hd-sec-help', 'display', 'none');
			YAHOO.util.Dom.setStyle('hd-pri-help', 'background-image', 'url(http://www.orange.co.bw/images/top_menu_bg.gif)');
			YAHOO.util.Dom.setStyle(YAHOO.util.Dom.get("hd-pri-help").firstChild, "color", "#000");
		   			YAHOO.util.Dom.setStyle('hd-sec-about-us', 'display', 'none');
			YAHOO.util.Dom.setStyle('hd-pri-about-us', 'background-image', 'url(http://www.orange.co.bw/images/top_menu_bg.gif)');
			YAHOO.util.Dom.setStyle(YAHOO.util.Dom.get("hd-pri-about-us").firstChild, "color", "#000");
			}
	catch(e){}
};
					
var hoverMenu = function(o, params){
	try{
		if(YAHOO.util.Dom.getStyle(params.sec, 'display') != 'block'){
			clearSecondaryMenu();
			YAHOO.util.Dom.setStyle(params.pri, "background-image", "none");
			YAHOO.util.Dom.setStyle(YAHOO.util.Dom.get(params.pri).firstChild, "color", "#ff6600");
			YAHOO.util.Dom.setStyle(params.sec, "display", "block");
		}
	}
	catch(e){}
};

YAHOO.util.Event.addListener('hd-pri-internet', 'mouseover', hoverMenu, {'pri': 'hd-pri-internet', 'sec' : 'hd-sec-internet'});
YAHOO.util.Event.addListener('hd-pri-mobile', 'mouseover', hoverMenu, {'pri': 'hd-pri-mobile', 'sec' : 'hd-sec-mobile'});
YAHOO.util.Event.addListener('hd-pri-news', 'mouseover', hoverMenu, {'pri': 'hd-pri-news', 'sec' : 'hd-sec-news'});
YAHOO.util.Event.addListener('hd-pri-help', 'mouseover', hoverMenu, {'pri': 'hd-pri-help', 'sec' : 'hd-sec-help'});
YAHOO.util.Event.addListener('hd-pri-about-us', 'mouseover', hoverMenu, {'pri': 'hd-pri-about-us', 'sec' : 'hd-sec-about-us'});

// prevent ie6 background image flickering
try{
	document.execCommand('BackgroundImageCache', false, true);
}
catch(e){};