var gMenuArray = new Array("menu_home", "menu_location", "menu_contactUs", "menu_aboutUs");

function goto(location)
{
	window.location = location;
}

function dom_addClass(object, className)
{
    if( !dom_hasClass(object, className) )
    {
        object.className += " " + className;
    }
}

function dom_removeClass(object, className)
{
    if( dom_hasClass(object, className) )
    {
        object.className = object.className.replace(className, '');
    }
}

function dom_hasClass(object, className)
{
    if( object.className && object.className.indexOf(className) != -1 )
    {
        return true;
    }

    return false;
}

function setCurrentMenuById(id)
{
	var div = document.getElementById(id);
	if( div )
	{
		setCurrentMenu(div);
	}
}

function setCurrentMenu(currentDiv)
{
	for( var i = 0; i < gMenuArray.length; i++ )
	{
		var item = document.getElementById(gMenuArray[i]);
		if( item )
		{
			if( item == currentDiv )
			{
				dom_addClass(item, "currentMenu");
			}
			else
			{
				dom_removeClass(item, "currentMenu");
			}
		}
	}
}