car_b=new Array(8); 
car_b[1]= new Image(); 
car_b[1].src="images/car_b/car_B_1.jpg"; 
car_b[2]= new Image(); 
car_b[2].src="images/car_b/car_B_2.jpg"; 
car_b[3]= new Image(); 
car_b[3].src="images/car_b/car_B_3.jpg"; 
car_b[4]= new Image(); 
car_b[4].src="images/car_b/car_B_4.jpg"; 
car_b[5]= new Image(); 
car_b[5].src="images/car_b/car_B_5.jpg"; 
car_b[6]= new Image(); 
car_b[6].src="images/car_b/car_B_6.jpg"; 
car_b[7]= new Image(); 
car_b[7].src="images/car_b/car_B_7.jpg"; 
car_b[8]= new Image(); 
car_b[8].src="images/car_b/car_B_8.jpg"; 
function carB(build)

 { 
 window.document.car_B.src = car_b[build].src; 
 }