function imagePopup(imageFile,W,H) {
	if (screen && (screen.width > W)) {
		var positionCode = ",top=25,left="+((screen.width-W) / 2)+",height="+H+",width="+W;
	}
	else {
		var positionCode = ""
	}
   imageWin = window.open('./image.html?'+imageFile,'imageWindow','scrollbars=no'+positionCode);
   if (window.focus) {imageWin.focus()}
  
}