var menu_visible=0;
var menu_numitems=4;
var menu_active;
a_menus=new Array(4);
a_menus[0]='empresa';
a_menus[1]='turismo';
a_menus[2]='eventos';
a_menus[3]='destaques';

function clicker() {
	if (menu_visible) {
		globalnav('blank','home_arquivos/spacer.gif');
	}
}

function MM_swapImage_gl(section,d,imagefile) {	
	layer_name="gl_"+section;
	image_name="globalnav_"+section;
	if (menu_active!=layer_name) {
		MM_swapImage(image_name,'',imagefile,1);
	}
}
function MM_swapImgRestore_gl(section,d,imagefile) {	
	layer_name="gl_"+section;
	image_name="globalnav_"+section;
	//alert(menu_active+" "+layer_name+ "==");
	if (menu_active!=layer_name) {
		//MM_swapImgRestore();
		MM_swapImage(image_name,'',imagefile,1);
	}
}
function globalnav(section,toggleimage) {
	//alert(section);
	layer_name="gl_"+section;
	image_name="globalnav_"+section;
	for (var i=0;i<a_menus.length;i++) {
		ithimage="home_arquivos/menu_blank.gif";
		ithimagename="globalnav_"+a_menus[i];
		// MM_swapImage(ithimagename,'',ithimage,1);
		document.images[ithimagename].src = ithimage;
	}
	if (menu_visible && menu_active==layer_name) { // toggle off
		MM_showHideLayers(layer_name,'','hide');
		menu_visible=0;
		menu_active="";
	}
	else {
		for (var i=0;i<a_menus.length;i++) {
			ithlayer="gl_"+a_menus[i];
			MM_showHideLayers(ithlayer,'','hide');
		}
		MM_showHideLayers(layer_name,'','show');
		if (toggleimage.length > 2) {
			MM_swapImage(image_name,'',toggleimage,1);
		}
		if (section!='blank') {
			menu_active=layer_name;
			menu_visible=1;
		}
		else {
			menu_active="";
			menu_visible=0;
		}
	}
}