function ShowImageSaveWindow(strImageName){
var url = "SaveImage.aspx?FileName="+strImageName;
h=250;
w=430;
newWindow = window.open(url,'search','width='+w+',height='+h+',top='+(screen.height-h)/2+',left='+(screen.width-w)/2+',location=0,directories=0,status=no,menuBar=no,scrollBars=yes,resizable=yes');
newWindow.focus();
}