function hideDiv(imgName, divName)
{
    var img = this.document.getElementById(imgName);
    var div = this.document.getElementById(divName);
    
    if(div.style.display == "none")
    {
        div.style.display = "block";
        img.src = "../../img/contract.gif";
        img.alt = "contract";
    }
    else
    {
        div.style.display = "none";
        img.src = "../../img/expand.gif";
        img.alt = "expand";
    }

    var iframe = this.window.parent.document.getElementById("content");
    var oWin = iframe.name ? this.window.parent.window.frames[iframe.name] : iframe.contentWindow;
    
    iframe.height = oWin.document.body.scrollHeight+1;
}