//var strViewerUrl = "http://www.shimbun-online.com/viewer/";

var strViewerPath = "/viewer/";

var strThisUrl = location.href;
var domain = strThisUrl.match(/^[httpsfile]+:\/{2,3}([0-9a-z\.\-:]+?)\//i)[1];
var strViewerUrl = "http://" + domain + strViewerPath;

function openViewer(astrUrl)
{
        width = 1024;
        height = 768;
        winleft =(screen.width - width)/2;
        wintop =(screen.height - height)/2;
        strStateTemp = "toolbar=no,location=no,menubar=no,status=no,width=" + width + ",height=" + height + ",left=" + winleft + ",top=" + wintop + ",resizable=yes";
        window.open(strViewerUrl + astrUrl + ".aspx", "viewer", strStateTemp);
}