function jqescape(str) {
    return str.replace(/[#;&,\.\+\*~':"!\^\$\[\]\(\)=>|\/\\]/g, '\\$&');
}

f you wish to use any of the meta-characters ( such as !"#$%&'()*+,./:;?@[\]^`{|}~ ) as a literal part of a name, you must escape the character with two backslashes: \\. For example, if you have an an element with id="foo.bar", you can use the selector $("#foo\\.bar").

jquery escape meta chars

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