function plainWindow()

{

   plain_window = 

    window.open("http://www.muellerdesign.com/contact.html","plain","toolbar,width=409,height=200");

}


if (document.images) {
  img100off = new Image();
  img100off.src = "images/buttontoengineoff.gif";
  img200off = new Image();
  img200off.src = "images/buttontomdihomeoff.gif";
  img300off = new Image();
  img300off.src = "images/buttoncontactoff.gif";




  img100on = new Image();
  img100on.src = "images/buttontoengineon.gif";
  img200on = new Image();
  img200on.src = "images/buttontomdihomeon.gif";
  img300on = new Image();
  img300on.src = "images/buttoncontacton.gif";



  


}


// Function to 'activate' images.
function imgOn(imgName) {
        if (document.images) {
            document[imgName].src = eval(imgName + "on.src");
        }
}

// Function to 'deactivate' images.
function imgOff(imgName) {
        if (document.images) {
            document[imgName].src = eval(imgName + "off.src");
}
}