{

var i,c;

for (i = 0; i < s.length; i++)

{

c = s.charAt(i);//字符串s中的字符

if (bag.indexOf(c) > -1)

return c;

}

return \"\";

}

检查函数:

function ischinese(s)

{

var errorChar;

var badChar = \"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789><,[]{}?/+=\\\\\''\\\":;~!#$%()`\";

errorChar = isCharsInBag( s, badChar)

if (errorChar != \"\" )

{

report=report+\"请重新输入中文\\n\";

return false;

}

return true;

}

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