if (document.images) {  

image1on = new Image();  
image1on.src = "images/navHome_on.gif";  

image2on = new Image();  
image2on.src = "images/navCompany_on.gif";  

image3on = new Image();  
image3on.src = "images/navSolutions_on.gif";  

image4on = new Image();  
image4on.src = "images/navProducts_on.gif";  

image5on = new Image();
image5on.src = "images/navServices_on.gif";

image6on = new Image();  
image6on.src = "images/navSupport_on.gif";  

image7on = new Image();
image7on.src = "images/navContact_on.gif";

image8on = new Image();
image8on.src = "images/navLinks_on.gif";

image1off = new Image();  
image1off.src = "images/navHome_off.gif";  

image2off = new Image();  
image2off.src = "images/navCompany_off.gif";  

image3off = new Image();  
image3off.src = "images/navSolutions_off.gif";  

image4off = new Image();  
image4off.src = "images/navProducts_off.gif"; 

image5off = new Image();
image5off.src = "images/navServices_off.gif"; 

image6off = new Image();  
image6off.src = "images/navSupport_off.gif"; 

image7off = new Image();
image7off.src = "images/navContact_off.gif"; 

image8off = new Image();
image8off.src = "images/navLinks_off.gif"; 

}

function changeImages() {

  if (document.images) {

    for (var i=0; i<changeImages.arguments.length; i+=2) {

      document[changeImages.arguments[i]].src = eval(changeImages.arguments[i+1] + ".src");

    }

  }

}