if (document.images)
{
	// nav buttons

		ds_b_1= new Image(25,20); 
		ds_b_1.src="images/ds_b_1.jpg";
	
		ds_b_1_o= new Image(25,20); 
		ds_b_1_o.src="images/ds_b_1_o.jpg";
		
		ds_b_2= new Image(25,20); 
		ds_b_2.src="images/ds_b_2.jpg";
		
		ds_b_2_o= new Image(25,20); 
		ds_b_2_o.src="images/ds_b_2_o.jpg";
	
		ds_b_3= new Image(25,20); 
		ds_b_3.src="images/ds_b_3.jpg";
	
		ds_b_3_o= new Image(25,20); 
		ds_b_3_o.src="images/ds_b_3_o.jpg";
	
		ds_l_1= new Image(25,20); 
		ds_l_1.src="images/ds_l_1.jpg";
	
		ds_l_1_o= new Image(25,20); 
		ds_l_1_o.src="images/ds_l_1_o.jpg";
		
		ds_l_2= new Image(25,20); 
		ds_l_2.src="images/ds_l_2.jpg";
		
		ds_l_2_o= new Image(25,20); 
		ds_l_2_o.src="images/ds_l_2_o.jpg";
		
		ds_l_3= new Image(25,20); 
		ds_l_3.src="images/ds_l_3.jpg";
		
		ds_l_3_o= new Image(25,20); 
		ds_l_3_o.src="images/ds_l_3_o.jpg";
	
		ds_l_b= new Image(25,20); 
		ds_l_b.src="images/ds_l_b.jpg";
		
		ds_l_b_o= new Image(25,20); 
		ds_l_b_o.src="images/ds_l_b_o.jpg";
	
		ds_l_t= new Image(25,20); 
		ds_l_t.src="images/ds_l_t.jpg";
	
		ds_l_t_o= new Image(25,20); 
		ds_l_t_o.src="images/ds_l_t_o.jpg";
		
		ds_r_1= new Image(25,20); 
		ds_r_1.src="images/ds_r_1.jpg";
	
		ds_r_1_o= new Image(25,20); 
		ds_r_1_o.src="images/ds_r_1_o.jpg";
	
		ds_r_2= new Image(25,20); 
		ds_r_2.src="images/ds_r_2.jpg";
	
		ds_r_2_o= new Image(25,20); 
		ds_r_2_o.src="images/ds_r_2_o.jpg";
	
		ds_r_3= new Image(25,20); 
		ds_r_3.src="images/ds_r_3.jpg";
	
		ds_r_3_o= new Image(25,20); 
		ds_r_3_o.src="images/ds_r_3_o.jpg";
	
		ds_r_b= new Image(25,20); 
		ds_r_b.src="images/ds_r_b.jpg";
		
		ds_r_b_o= new Image(25,20); 
		ds_r_b_o.src="images/ds_r_b_o.jpg";
		
		ds_r_t= new Image(25,20); 
		ds_r_t.src="images/ds_r_t.jpg";
		
		ds_r_t_o= new Image(25,20); 
		ds_r_t_o.src="images/ds_r_t_o.jpg";
		
		ds_t_1= new Image(25,20); 
		ds_t_1.src="images/ds_t_1.jpg";
	
		ds_t_1_o= new Image(25,20); 
		ds_t_1_o.src="images/ds_t_1_o.jpg";
		
		ds_t_2= new Image(25,20); 
		ds_t_2.src="images/ds_t_2.jpg";
		
		ds_t_2_o= new Image(25,20); 
		ds_t_2_o.src="images/ds_t_2_o.jpg";
		
		ds_t_3= new Image(25,20); 
		ds_t_3.src="images/ds_t_3.jpg";
		
		ds_t_3_o= new Image(25,20); 
		ds_t_3_o.src="images/ds_t_3_o.jpg";
		
}