window.onload =

function InitializeSubnavigation()
{
    var SubnavigationContainer = document.getElementById("subnavigation");
                
    if(SubnavigationContainer !== null)
    {
        if(SubnavigationContainer.getElementsByTagName("ul").length > 0)
        {
            var SubnavigationList = SubnavigationContainer.getElementsByTagName("ul")[0];   
            
            if(SubnavigationList.getElementsByTagName("li").length > 0)
            {
                var SubnavigationListItems = SubnavigationList.getElementsByTagName("li");
                                                                
                for(i = 0; i < SubnavigationListItems.length; i++)
                {                              
                    var Link = SubnavigationListItems[i].firstChild;
                    
                    if(document.URL == Link.href)
                    {
                        Link.className = "active";
                    }
                }                
            }
        }      
    };        
}