// toolbar button effects
function SPAW_default_bt_over(ctrl)
{
  if (!ctrl.disabled && ctrl.disabled != "true") // for gecko
  {
    var imgfile = SPAW_base_image_name(ctrl)+"_over.gif";
    ctrl.src = imgfile;
  }
}
function SPAW_default_bt_out(ctrl)
{
  if (!ctrl.disabled && ctrl.disabled != "true") // for gecko
  {
    var imgfile;
    if (ctrl.getAttribute("spaw_state") == true || ctrl.getAttribute("spaw_state") == "true")
    {
      imgfile = SPAW_base_image_name(ctrl)+"_down.gif";
    }
    else
    {
      imgfile = SPAW_base_image_name(ctrl)+".gif";
    }
    ctrl.src = imgfile;
  }
}
function SPAW_default_bt_down(ctrl)
{
  if (!ctrl.disabled && ctrl.disabled != "true") // for gecko
  {
    var imgfile = SPAW_base_image_name(ctrl)+"_down.gif";
    ctrl.src = imgfile;
  }
}
function SPAW_default_bt_up(ctrl)
{
  if (!ctrl.disabled && ctrl.disabled != "true") // for gecko
  {
    var imgfile = SPAW_base_image_name(ctrl)+".gif";
    ctrl.src = imgfile;
  }
}
function SPAW_default_bt_off(ctrl)
{
  var imgfile = SPAW_base_image_name(ctrl)+"_off.gif";
  ctrl.src = imgfile;
}