function zoom(img) {
pixW = 420; 
 pixH = 350;
posX = Math.round((screen.width - pixW) / 2);
posY = Math.round((screen.height - pixH) / 2);
posCode =  "screenX="+posX+",screenY="+posY;
zoomWindow = window.open("../../sh.img/"+img+".jpg","zoomWindow","menubar=no,toolbar=no,scrollbars=no,status=yes,width="+pixW+",height="+pixH+","+posCode);
zoomWindow.focus(); 
}

function zoom2(img) {
pixW = 320; pixH = 420;
posX = Math.round((screen.width - pixW) / 2);
posY = Math.round((screen.height - pixH) / 2);
posCode =  "screenX="+posX+",screenY="+posY;
zoomWindow = window.open("../../sh.img/"+img+".jpg","zoomWindow","menubar=no,toolbar=no,scrollbars=no,status=yes,width="+pixW+",height="+pixH+","+posCode);
zoomWindow.focus(); 
}