function popup (url) {  
fenster=window.open (url, "Popupfenster", "width=735, height=520, resizeable=yes, location=yes, status=yes, scrollbars=yes, toolbar=yes"); fenster.focus (); return false;  
} 

function popup2 (url) {  
fenster=window.open (url, "Popupfenster", "resizeable=yes, location=yes, status=yes, scrollbars=yes, toolbar=yes, directories=yes, dependent=yes"); fenster.focus (); return false;  
} 

function popup3 (url) {  
fenster=window.open (url, "Popupfenster", "width=960, height=600, resizeable=yes, location=yes, status=yes, scrollbars=yes, toolbar=yes"); fenster.focus (); return false;  
} 

function popup4 (url) {  
fenster=window.open (url, "Popupfenster", "resizeable=yes, location=yes, status=yes, scrollbars=yes, toolbar=yes"); fenster.focus (); return false;  
}