if (document.images)
{
  pic1= new Image()
  pic1.src="images/nav/products/technology_up.gif"; 

  pic2= new Image(); 
  pic2.src="images/nav/products/technology_over.gif"; 

  pic3= new Image(); 
  pic3.src="images/nav/products/technology_on.gif"; 
  
  pic4= new Image()
  pic4.src="images/nav/about/people_up.gif"; 

  pic5= new Image(); 
  pic5.src="images/nav/about/people_over.gif"; 

  pic6= new Image(); 
  pic6.src="images/nav/about/people_on.gif"; 
  
  pic7= new Image()
  pic7.src="images/nav/about_on.gif"; 

  pic8= new Image(); 
  pic8.src="images/nav/products_on.gif"; 

  pic9= new Image(); 
  pic9.src="images/nav/resources_on.gif"; 
  
  pic9= new Image(); 
  pic9.src="images/nav/support_on.gif"; 
}