function OpenImagePreview(ImageURL, Width, Height){
var Page = 'Dialogs/ImagePreview.aspx?ImageURL=' + urlEncode(ImageURL);
    var w = parseInt(Width);
    var h = parseInt(Height);
    w = w + 50;
    h = h + 40;
    Width = w.toString();
    Height = h.toString();
    window.open(Page, 'ImageViewer', 'Width=' + Width + ', Height=' + Height + ',left=' + ((screen.availWidth - Width)/2) + ',top=' + ((screen.availHeight - Height)/2) + ', menu=no, status=no');
}
function OpenCalculator(SubDirPath){
	window.open(SubDirPath + 'Dialogs/MetalPriceCalculator.aspx', 'Calculator' ,'width=850, height=300, left=' + ((screen.availWidth-850)/2) + ',top=' + ((screen.availHeight-300)/2) + ',menu=no,status=no');
}