services_on = new Image();
 services_on.src = "images/servbut2.jpg";
 services_off = new Image();
 services_off.src = "images/servbut.jpg";
 
 quote_on = new Image();
 quote_on.src = "images/quotbut2.jpg";
 quote_off = new Image();
 quote_off.src = "images/quotbut.jpg";
 
 reorder_on = new Image();
 reorder_on.src = "images/reordbut2.jpg";
 reorder_off = new Image();
 reorder_off.src = "images/reordbut.jpg";
 
 freetips_on = new Image();
 freetips_on.src = "images/tipsbut2.jpg";
 freetips_off = new Image();
 freetips_off.src = "images/tipsbut.jpg";
 
 offers_on = new Image();
 offers_on.src = "images/splbut2.jpg";
 offers_off = new Image();
 offers_off.src = "images/splbut.jpg";
 
 transfer_on = new Image();
 transfer_on.src = "images/filetransfer2.jpg";
 transfer_off = new Image();
 transfer_off.src = "images/filetransfer.jpg";
 
 equipment_on = new Image();
 equipment_on.src = "images/equip2.jpg";
 equipment_off = new Image();
 equipment_off.src = "images/equip.jpg";
 
 pricing_on = new Image();
 pricing_on.src = "images/pricebut2.jpg";
 pricing_off = new Image();
 pricing_off.src = "images/pricebut.jpg";

 about_on = new Image();
 about_on.src = "images/compbut2.jpg";
 about_off = new Image();
 about_off.src = "images/compbut.jpg";

/* function to set image to on state */

function over_image(imageName)
{
  document[imageName].src = eval(imageName +"_on.src");
}


/* function to reset image back to off state */

function off_image(imageName)
{
  document[imageName].src = eval(imageName+"_off.src");
}