if (document.images)
{
  pic1= new Image(53,20); 
  pic1.src="images/navigation/home_button.png"; 

  pic2= new Image(53,20); 
  pic2.src="images/navigation/home_buttonover.png"; 

  pic3= new Image(73,20); 
  pic3.src="images/navigation/firm_button.png"; 
  
  pic4= new Image(73,20); 
  pic4.src="images/navigation/firm_buttonover.png"; 
  
  pic5= new Image(78,20); 
  pic5.src="images/navigation/work_button.png"; 
  
  pic6= new Image(78,20); 
  pic6.src="images/navigation/work_buttonover.png"; 
  
  pic7= new Image(105,20); 
  pic7.src="images/navigation/clients_button.png"; 
  
  pic8= new Image(105,20); 
  pic8.src="images/navigation/clients_buttonover.png"; 
  
  pic9= new Image(73,20); 
  pic9.src="images/navigation/contact_button.png"; 
  
  pic10= new Image(73,20); 
  pic10.src="images/navigation/contact_buttonover.png"; 
  
  pic11= new Image(153,30); 
  pic11.src="images/navigation/collab_left.png";
  
  pic12= new Image(153,30); 
  pic12.src="images/navigation/collab_left_over.png";
  
  pic13= new Image(153,31); 
  pic13.src="images/navigation/fun_left.png"; 

  pic14= new Image(153,31); 
  pic14.src="images/navigation/fun_left_over.png"; 

  pic15= new Image(153,32); 
  pic15.src="images/navigation/identity_left.png"; 
  
  pic16= new Image(153,32); 
  pic16.src="images/navigation/identity_left_over.png"; 
  
  pic17= new Image(153,32); 
  pic17.src="images/navigation/logos_left.png"; 
  
  pic18= new Image(153,32); 
  pic18.src="images/navigation/logos_left_over.png"; 
  
  pic19= new Image(153,33); 
  pic19.src="images/navigation/print_left.png"; 
  
  pic20= new Image(153,33); 
  pic20.src="images/navigation/print_left_over.png"; 
  
  pic21= new Image(153,30); 
  pic21.src="images/navigation/web_left.png"; 
  
  pic22= new Image(153,30); 
  pic22.src="images/navigation/web_left_over.png"; 
}