pic1 = new Image(); 
pic1.src =  "http://active.fnqtravel.com.au/images/bgDropdownLi.jpg";
  
pic2 = new Image(); 
pic2.src =  "http://active.fnqtravel.com.au/images/bgDropdownLi_h.jpg";
  
pic3 = new Image(); 
pic3.src =  "http://active.fnqtravel.com.au/images/bgMenuLi.jpg";
  
pic4 = new Image(); 
pic4.src =  "http://active.fnqtravel.com.au/images/bgMenuLi_h.jpg";