<form name="kursabfrage" action="" method="" target="">
<input type="Text" name="kurs" value="ES1" size="3" maxlength="">
<button name="Klickmich" type="button"
value="nix"
onclick="window.open('http://www.xyz.de/kurse.php?cID=xyz&iFSsymbols=' + document.kursabfrage.kurs.value + '%21&iFScompareTo=&iFSperiod=D&iFSvminutes=&iFSchartsize=650x450&iFSbardensity=MEDIUM&iFSbartype=BAR&iFSstudies=&iFSohlc=true&action=chart','','')">
Kurs abfragen
</button></form>