function preloadImages()
{
    for (i=0; i<52; i++)
    {
        var c = "" + i;
        if (c.length==1)
            c = "0" + c;
        var url = "images/cards/" + c + ".gif";
           
        var image1 = new Image();
        image1.src = url;
    }
}

function openGame()
{
    var prop = "height=650,width=850,status=no,toolbar=no,menubar=no,resizeable=no,scrollbars=no";
    var url = "/GameInit.aspx"
    window.open(url, "Game", prop);          
}
        
// ********* ********* ********* ********* *********
// * events
// ********* ********* ********* ********* *********
function GameOnLoad()
{
    var objCheckbox = document.getElementById("chkStrategy");
    CheckboxClick(objCheckbox);
    
    objCheckbox = document.getElementById("chkCountMethod");
    CheckboxClick(objCheckbox);
}

function CheckboxClick(objCheckbox)
{
    if (objCheckbox)
    {
        if (objCheckbox.id == "chkStrategy")
            cntrlID = "DivStrategy";
        if (objCheckbox.id == "chkCountMethod")
            cntrlID = "DivCountMethod";

        if (cntrlID)
            if (objCheckbox.checked)
                ShowDiv(cntrlID, true);
            else
                ShowDiv(cntrlID, false);
    }
}

// ********* ********* ********* ********* *********
// * misc
// ********* ********* ********* ********* *********
function ToggleDiv(cntrlID)
{
    var div = $("div[id='" + cntrlID + "']");
    if (div.css("display")=="none")
        div.css("display", "block");
    else
        div.css("display", "none");
}

function ShowDiv(cntrlID, visible)
{
    var div = $("div[id='" + cntrlID + "']");
    if (visible)
        div.css("display", "block");
    else
        div.css("display", "none");
}