// Print page
function PrintPage(content_id, site) 
{
    if(content_id != null) { 
        //Pass site code, if provided    
        strSite = "";
        if(site != null)
            strSite = "&site=" + site;
            
        //Content id passed - redirect to printable page
        displayWindow('/print.aspx?id=' + content_id + strSite, 600, 600);
    } else { 
        //No content id passed
        window.print(); 
    }
}