html - JavaScript switch not executing -


i have simple javascript code. switch not executed, reason, mystery me! stupid error have made?

function hndlev ( e ) {     switch ( document.forms[0].zcode.length )     {         case 1: document.forms[0].zcode.style.backgroundcolor = "ffcc33"; break;         case 2: document.forms[0].zcode.style.backgroundcolor = "ffff33"; break;         case 3: document.forms[0].zcode.style.backgroundcolor = "ccff33"; break;         case 4: document.forms[0].zcode.style.backgroundcolor = "66ff33"; break;         case 5: document.forms[0].zcode.style.backgroundcolor = "00ff33"; break;     } } ... <body onload="setfocus();" onkeypress="hndlev(event);"> ... <input type="text" name="zcode" size="6" maxlength="6" class="code" /> 

function hndlev ( e ) {     switch ( document.forms[0].zcode.value.length )     {         case 1: document.forms[0].zcode.style.backgroundcolor = "ffcc33"; break;         case 2: document.forms[0].zcode.style.backgroundcolor = "ffff33"; break;         case 3: document.forms[0].zcode.style.backgroundcolor = "ccff33"; break;         case 4: document.forms[0].zcode.style.backgroundcolor = "66ff33"; break;         case 5: document.forms[0].zcode.style.backgroundcolor = "00ff33"; break;      } }

try this


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