function openWin(URLtoOpen, windowName, windowFeatures) {

        if (windowFeatures.search(/scrollbars/) == -1) {
                windowFeatures = windowFeatures + ",scrollbars=1";
        }
        if (windowFeatures.search(/resizable/) == -1) {
                windowFeatures = windowFeatures + ",resizable=1";
        }
        if (windowFeatures.search(/toolbar/) == -1) {
                windowFeatures = windowFeatures + ",toolbar=0";
        }
        if (windowFeatures.search(/titlebar/) == -1) {
                windowFeatures = windowFeatures + ",titlebar=0";
        }
        if (windowFeatures.search(/status/) == -1) {
                windowFeatures = windowFeatures + ",status=0";
        }
        if (windowFeatures.search(/location/) == -1) {
                windowFeatures = windowFeatures + ",location=0";
        }
        if (windowFeatures.search(/width/) == -1) {
                windowFeatures = windowFeatures + ",width=800";
        }
        if (windowFeatures.search(/height/) == -1) {
                windowFeatures = windowFeatures + ",height=600";
        }
        var popupWin = window.open(URLtoOpen, windowName, windowFeatures); 
        popupWin.focus();
}