function opwin (theURL,theName,theWidth,theHeight,theScroll) {

        var tempScrollStr = 'scrollbars=yes,'; 
        if ((theScroll != null) && (theScroll == false)) { tempScrollStr = ''; }
        
        var tempParamStr = 'toolbar=no,location=no,status=no,menubar=no,' + tempScrollStr + 'width=' + theWidth + ',height=' + theHeight; 
        var tempWin = window.open (theURL,theName,tempParamStr); 
        tempWin.focus(); 

        return true; 
        }