function CreateCode(len) {
var seed = new Array
(
'abcdefghijklmnopqrstuvwxyz',
'ABCDEFGHIJKLMNOPQRSTUVWXYZ',
'1234567890'
);
var idd, i;
var result = '';
for (i = 0; i < len; i++) {
idd = Math.floor(Math.random() * seed.length);
result += seed[idd].substr(Math.floor(Math.random() * (seed[idd].length)), 1);
}
document.getElementById("txtCode").value = result;
return result;
}
</script>
调用脚本:
<input type="button" id="btnChange" value="看不清" _disibledevent=
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