function openWindow(imgW,imgH, imgId) {
 imgPath='image.php?id='+imgId;
	scrW=screen.width; scrH=screen.height;
	winW=imgW; winH=imgH;
	scrollbr='no';
	if (scrH-58<imgH) {winW=winW+16; winH=scrH-58; scrollbr='yes';}
	winX=(scrW/2)-(winW/2);
	winY=(scrH/2)-(winH/2)-28;
	if (window.hImgWin && window.hImgWin.open && !window.hImgWin.closed) {hImgWin.window.close();}
	hImgWin = window.open(imgPath,'_blank','width='+winW+',height='+winH+',screenX='+winX+',screenY='+winY+',left='+winX+',top='+winY+',alwaysRaised=yes,dependent=yes,scrollbars='+scrollbr);
}