function initSubMenu () {
	if (_('menu')) {
		var menu_items = _('menu').getElementsByTagName('li');
		
		for (var i = 0; i < menu_items.length; i++) { 
		    if (menu_items[i].id.substr(0,4)== "menu") { 
		    	menu_items[i].onmouseover = function() {
		    		var sub = this.getElementsByTagName('ul');
		    		if (sub.length > 0) {
			    		css('add',sub[0],'hover');
		    		}
		    		//css('add',this,'hover');
				}
				menu_items[i].onmouseout = function() {
		    		var sub = this.getElementsByTagName('ul');
		    		if (sub.length > 0) {
			    		css('remove',sub[0],'hover');
		    		}
		    		//css('remove',this,'hover');
				}
		    }
		}
	}
}

function goToFrontpage(siteCategory) {

	var f = document.getElementById("site_select");
	f.siteCategory.value = siteCategory;
	f.submit();
}

function init() {
	/* init submenu for internet explorer */
	if (isIE) {
		initSubMenu();
	}
}

window.onload = init;