var image1 = new Image(); 
image1.src = "images/documentary/001.jpg"; 
var image2 = new Image(); 
image2.src = "images/documentary/002.jpg"; 
var image3 = new Image(); 
image3.src = "images/documentary/003.jpg"; 
var image4 = new Image(); 
image4.src = "images/documentary/004.jpg"; 
var image5 = new Image(); 
image5.src = "images/documentary/005.jpg";
var image6 = new Image(); 
image6.src = "images/documentary/006.jpg";
var image7 = new Image(); 
image7.src = "images/documentary/007.jpg";
var image8 = new Image(); 
image8.src = "images/documentary/008.jpg"; 
var image9 = new Image(); 
image9.src = "images/documentary/009.jpg"; 
var image10 = new Image(); 
image10.src = "images/documentary/010.jpg"; 
var image11 = new Image(); 
image11.src = "images/documentary/011.jpg"; 
var image12 = new Image(); 
image12.src = "images/documentary/012.jpg";
var image13 = new Image(); 
image13.src = "images/documentary/013.jpg";
var image14 = new Image(); 
image14.src = "images/documentary/014.jpg";
var image15 = new Image(); 
image15.src = "images/documentary/015.jpg";
var image16 = new Image(); 
image16.src = "images/documentary/016.jpg"; 

function change_image(val) { 

switch(val){
	case 1:
		document["view"].src = image1.src; 
		break;
	case 2:
		document["view"].src = image2.src; 
		break;
	case 3:
		document["view"].src = image3.src; 
		break;
	case 4:
		document["view"].src = image4.src; 
		break;
	case 5:
		document["view"].src = image5.src; 
		break;
	case 6:
		document["view"].src = image6.src; 
		break;
	case 7:
		document["view"].src = image7.src; 
		break;
	case 8:
		document["view"].src = image8.src; 
		break;
	case 9:
		document["view"].src = image9.src; 
		break;
	case 10:
		document["view"].src = image10.src; 
		break;
	case 11:
		document["view"].src = image11.src; 
		break;
	case 12:
		document["view"].src = image12.src; 
		break;
	case 13:
		document["view"].src = image13.src; 
		break;
	case 14:
		document["view"].src = image14.src; 
		break;
		case 14:
		document["view"].src = image14.src; 
		break;
	case 15:
		document["view"].src = image15.src; 
		break;
	case 16:
		document["view"].src = image16.src; 
		break;		
	}
}