Probleme mit Keyevents

[Don P]

Hallo,

Wär echt genial, wenn jemand weiß, was da kaputt ist.

Die Fehlerkonsole von Opera weiß es ganz genau:
--------------------------------------------------------------
CSS - http://www.halbleiter.org/stylesheets/main.css
Linked-in stylesheet
-moz-box-sizing is an unknown property
Line 34:
   -moz-box-sizing:border-box;
  -----------------^
CSS - http://www.halbleiter.org/stylesheets/main.css
Linked-in stylesheet
Selector syntax error
Line 394:
    width:20%;
  -------^
CSS - http://www.halbleiter.org/suche/
HTML style attribute
Invalid value for property: font
Line 1:
  font:verdana; font-size:10px
  -------------^
JavaScript - http://www.halbleiter.org/suche/
Event thread: keydown
Error:
name: TypeError
message: Statement on line 125: Cannot convert undefined or null to Object
Backtrace:
  Line 125 of linked script http://www.halbleiter.org/javascript/key.js: In function keyPressed
            document.getElementById(txt_id).value = curElement.firstChild.id;
  ...  Line 28 of linked script http://www.halbleiter.org/javascript/key.js: In function handleEvent
        callBack.call(callBack,event,target,(returnParams)?returnParams:null);
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Gruß, Don P