function OpenReportWindow(url) {
    newwindow = window.open(url, 'voorbeeld', 'resizable=1,left=100,top=100,height=600,width=850');
    //newwindow=window.open(url,'name','left=100,top=100,height=520,width=800,resizable=true,scrollbars=true,toolbar=no,menubar=no,location=no');
    if (window.focus) { newwindow.focus() }
}

function OpenReportWindow(url, windowwidth, windowheight) {
    newwindow = window.open(url, "voorbeeld", 'location=no,left=100,top=100,height=' + windowheight + ',width=' + windowwidth);
    //newwindow=window.open(url,'name','left=100,top=100,height=520,width=800,resizable=true,scrollbars=true,toolbar=no,menubar=no,location=no');
    if (window.focus) { newwindow.focus() }
}