iOn= new Image(32,31);
iOff= new Image(32,31);
iAni= new Image(32,31);


pic1 = new Array();
pic2 = new Array();



pic1[1]= new Image(261,206);
pic2[1]= new Image(261,206);
pic1[2]= new Image(335,338);
pic2[2]= new Image(335,338);
pic1[3]= new Image(400,400);
pic2[3]= new Image(400,400);
pic1[4]= new Image(600,417);
pic2[4]= new Image(600,417);
pic1[5]= new Image(680,431);
pic2[5]= new Image(680,431);
pic1[6]= new Image(680,482);
pic2[6]= new Image(680,482);

imageSwitches = new Array();
              

iOff.src="pics/menu_show.gif";
iOn.src="pics/menu_hide.gif";
iAni.src="pics/menu_ani.gif";



pic1[1].src="pics/m67noao-orig.jpg";
pic2[1].src="pics/m67noao-sketchd.jpg";
pic1[2].src="pics/m50-hawa.jpg";
pic2[2].src="pics/m50-hawa-sketched.jpg";
pic1[3].src="pics/m41noao.jpg";
pic2[3].src="pics/m41noao-sketched.jpg";
pic1[4].src="pics/NGC957.jpg";
pic2[4].src="pics/NGC957_my.jpg";
pic2[5].src="pics/m66group_LeoTriplet_640.jpg";
pic1[5].src="pics/m66group_LeoTriplet_labeled_640.jpg";
pic1[6].src="pics/m96Group_m95_96_105_labled.jpg";
pic2[6].src="pics/m96Group_m95_96_105.jpg";

for (i = 1; i < 10; i++) 
{                       
  imageSwitches [i] = 1;                
}

function startSwitch(imageId)
{
 var i;
 i=parseInt(0+imageId.slice(imageId.length-1, imageId.length));
	//alert(i+"---"+imageSwitches[i]);

 switch (imageSwitches[i]) 
 {
 	case 1:   imageSwitches[i]=2; document.images[imageId].src=pic2[i].src;  	break;
 	case 2:   imageSwitches[i]=1; document.images[imageId].src=pic1[i].src;   break;
 	default:  imageSwitches[i]=1; document.images[imageId].src=pic1[i].src; 	break; 
 }

 return true;
}	



function checkSwitch(swithcImageId)
{
  var i;
  i=parseInt(0+swithcImageId.slice(swithcImageId.length-1, swithcImageId.length));

 switch (imageSwitches[i]) 
 {
 	case 1: document.images[swithcImageId].src=iOff.src; break;
 	case 2: document.images[swithcImageId].src=iOn.src;  break;
 	default: document.images[swithcImageId].src=iOff.src;  break;
 }

return true;
}



function aniSwitch(swithcImageId)
{
		document.images[swithcImageId].src=iAni.src;
		return true;
}