function switchdatheader(){var headerdisplay = document.getElementById("display"); display = new Array;display[0]="display1";display[1]="display2";display[2]="display3";random_num = (Math.round((Math.random()*2))); headerdisplay.setAttribute('id',display[random_num]);}
function addLoadEvent(func) { var oldonload = window.onload;  if (typeof window.onload != 'function') { window.onload = func; } else { window.onload = function() {oldonload(); func(); } } } 
addLoadEvent(switchdatheader); 
function newWindow(a_str_windowURL, a_str_windowName, a_int_windowWidth, a_int_windowHeight, a_bool_scrollbars, a_bool_resizable, a_bool_menubar, a_bool_toolbar, a_bool_addressbar, a_bool_statusbar, a_bool_fullscreen, scroll) {
  var int_windowLeft = (screen.width - a_int_windowWidth) / 2;
  var int_windowTop = (screen.height - a_int_windowHeight) / 2;
  var str_windowProperties = 'height=' + a_int_windowHeight + ',width=' + a_int_windowWidth + ',top=' + int_windowTop + ',left=' + int_windowLeft + ',scrollbars=' + scroll + ' ,resizable=' + a_bool_resizable + ',menubar=' + a_bool_menubar + ',toolbar=' + a_bool_toolbar + ',location=' + a_bool_addressbar + ',statusbar=' + a_bool_statusbar + ',fullscreen=' + a_bool_fullscreen + '';
  var obj_window = window.open(a_str_windowURL, a_str_windowName, str_windowProperties)
    if (parseInt(navigator.appVersion) >= 4) {
      obj_window.window.focus();
    }
}