/* Function to open up a new browser window, without a navigation bar */
function newWindow(url)
{
    var new_window;
    var windowProperties;
    windowProperties = "width=750,height=700,top=30,left=230,toolbar=0,menubar=0,resizable=1,scrollbars=yes";
    if(new_window==null) {
       new_window = window.open(url,null,windowProperties);
    } else {
       new_window.document.replace(url);
    }
}