// ---------------------------------------
// Author: Miguel Jette
// Created: September 25th, 2006
//
// Last Modified: September 25th, 2006.
// ---------------------------------------

/*
 * expandcontent
 *  This function expands the right tabcontent.
 *  It is mainly called from the tabs that doesn't open actual links.
*   But the function is also called when reloading a page and the sublinks needs to be loaded as well.
 */
function expandcontent(linkobj){
    var ulid=linkobj.parentNode.parentNode.id; //id of UL element
    var ullist=document.getElementById(ulid).getElementsByTagName("li"); //get list of LIs corresponding to the tab contents
    for (var i=0; i<ullist.length; i++){
        ullist[i].className="";  //deselect all tabs
        document.getElementById(ullist[i].getElementsByTagName("a")[0].getAttribute("rel")).style.display="none"; //hide all tab contents
    }
    linkobj.parentNode.className="selected";  //highlight currently clicked on tab
    document.getElementById(linkobj.getAttribute("rel")).style.display="block"; //expand corresponding tab content
}

/*
 * initializetabcontent
 *  This function is called everytime you reload the page.
 *  It first looks at the location, and figures out which tab needs to be expanded.
 *  Then, it parses through your main menu (li's) and appends an 'onclick' event to the right links (The one's that have rel != empty).
 */
function initializetabcontent(){
    // First, we check where we are using the location in the adress bar
    var loc = window.location.pathname;

    // Now, depending on the location, we select the right li object to expand it's tab
    // Tests
    if(loc.match("/test") || loc.match("free_test") || loc.match("test_reviews") || loc.match("help") || loc.match("help_contact")){
        var liobj = document.getElementById("navTests");
    }
    // Study
    else if(loc.match("study_guide") || loc.match("study_guide_2007") || loc.match("practice_questions") || loc.match("order") || loc.match("reviews")){
        var liobj = document.getElementById("navStudy");
    }
    // About
    else if(loc.match("about_the_test") || loc.match("book_your_test") || loc.match("what_to_study") || loc.match("after_your_test") || loc.match("latest_info")){
        var liobj = document.getElementById("navAbout");
    }
    // News
    else if(loc.match("news")){ //
        var liobj = document.getElementById("navNews");
    }
    else{ // Home
        var liobj = document.getElementById("navHome");
    }
    var linkobj = liobj.getElementsByTagName("a")[0];
    expandcontent(linkobj);

    //for (var i=0; i<arguments.length; i++){ //loop through passed UL ids
    //    var ulobj=document.getElementById(arguments[i])
     //   var ulist=ulobj.getElementsByTagName("li") //array containing the LI elements within UL
     //   for (var x=0; x<ulist.length; x++){ //loop through each LI element
     //       var ulistlink=ulist[x].getElementsByTagName("a")[0]

            // If it has submenus, do something about it
     //       if (ulistlink.getAttribute("rel") != "empty"){
     //           ulistlink.onclick=function(){
     //               expandcontent(this);
	 //				window.location = this;
     //              return false;
     //         }
     //    }

   //     } //end inner for loop
   // } //end outer for loop
}