转自：http://dev.mjxy.cn/a-Javascript-Remove-control-character-from-string.aspx
// Remove control character from a string
function removeNL(s)
{
// NewLine, CarriageReturn and Tab characters from a String
// will be removed and will return the new string
r = "";
for (i = 0; i < s.length; i++)
{
if (s.charAt(i) != \'\n\' & s.charAt(i) != \'\r\' & s.charAt(i) != \'\t\') {
r += s.charAt(i);
}
}
return r;
}