if (document.images) {
    homebuttonup       = new Image();
    homebuttonup.src   = "images/nav/Home.png" ;
    homebuttondown     = new Image() ;
    homebuttondown.src = "images/nav/HomeOn.png" ;
    
    supportbuttonup       = new Image();
    supportbuttonup.src   = "images/nav/Support.png" ;
    supportbuttondown     = new Image() ;
    supportbuttondown.src = "images/nav/SupportOn.png" ;
    
    productsbuttonup       = new Image();
    productsbuttonup.src   = "images/nav/Products.png" ;
    productsbuttondown     = new Image() ;
    productsbuttondown.src = "images/nav/ProductsOn.png" ;
    
    pricelistbuttonup       = new Image();
    pricelistbuttonup.src   = "images/nav/PriceList.png" ;
    pricelistbuttondown     = new Image() ;
    pricelistbuttondown.src = "images/nav/PriceListOn.png" ;
    
    productsbuttonup       = new Image();
    productsbuttonup.src   = "images/nav/Products.png" ;
    productsbuttondown     = new Image() ;
    productsbuttondown.src = "images/nav/ProductsOn.png" ;
    
    viewcallsbuttonup       = new Image();
    viewcallsbuttonup.src   = "images/nav/ViewCalls.png" ;
    viewcallsbuttondown     = new Image() ;
    viewcallsbuttondown.src = "images/nav/ViewCallsOn.png" ;
    
    configuratorbuttonup       = new Image();
    configuratorbuttonup.src   = "images/nav/Configurator.png" ;
    configuratorbuttondown     = new Image() ;
    configuratorbuttondown.src = "images/nav/ConfiguratorOn.png" ;
    
    aboutbuttonup       = new Image();
    aboutbuttonup.src   = "images/nav/About.png" ;
    aboutbuttondown     = new Image() ;
    aboutbuttondown.src = "images/nav/AboutOn.png" ;
    
    contactbuttonup       = new Image();
    contactbuttonup.src   = "images/nav/Contact.png" ;
    contactbuttondown     = new Image() ;
    contactbuttondown.src = "images/nav/ContactOn.png" ;
    
    employmentbuttonup       = new Image();
    employmentbuttonup.src   = "images/nav/Employment.png" ;
    employmentbuttondown     = new Image() ;
    employmentbuttondown.src = "images/nav/EmploymentOn.png" ;
	
	searchproductsup	   = new Image();
    searchproductsup.src   = "images/searchProducts.png" ;
    searchproductsdown     = new Image() ;
    searchproductsdown.src = "images/searchProductsNoText.png" ;
	
	searchproductsbuttonup	   = new Image();
    searchproductsbuttonup.src   = "images/searchProductsButton.png" ;
    searchproductsbuttondown     = new Image() ;
    searchproductsbuttondown.src = "images/searchProductsButtonDown.png" ;
	
	
}

function buttondown( buttonname )
{
    if (document.images) {
      document[ buttonname ].src = eval( buttonname + "down.src" );
    }
}
function buttonup ( buttonname )
{
    if (document.images) {
      document[ buttonname ].src = eval( buttonname + "up.src" );
      
     }   
 }