var windowHandle = null;
 var globalImage = null;
 var globalImageWidth = null;
 var globalImageHeight = null;
 var globalCaption = null;

function myOpen(localImage,localCaption,imageWidth,imageHeight)
{
	globalImage = localImage;
	globalCaption = localCaption;
	globalImageWidth = imageWidth;
	globalImageHeight = imageHeight;
	windowWidth = imageWidth + 34;
	 if (imageHeight > screen.height - 140)		
	 	windowHeight = screen.height - 50
	 else
		windowHeight = imageHeight + 110;
	 posX = screen.width/2 - imageWidth/2 - 20;
	windowHandle = 
window.open('photo.html','windowName','toolbar=no,location=no,status=no, scrollbars=yes,resizable=no,width='+ windowWidth +',height='+ windowHeight +',top=0,left='+ posX );
windowHandle.moveTo(posX,0);
}

//Version for simple window with text only (added width on 1 June 2008)
function myOpen2(localImage,imageWidth)
	{
	globalImage = localImage;
	posX = screen.width/2 - imageWidth/2 - 20;		
	windowWidth = imageWidth + 34;
	windowHandle = 
	window.open(globalImage,'popup','toolbar=yes,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width='+ windowWidth +',copyhistory=no');
	windowHandle.moveTo(posX,0);
	}

function changeIt(MyImage1, MyImage2) { 
if (document.images) { document[MyImage1].src = MyImage2; } ;
}