[jQuery] how to collage list of value in custom attribute

[jQuery] how to collage list of value in custom attribute


my form have custom attribute for configure jquery function like
<form id="tform">
<input type="text" name="email1" custom="req ,isEmail" />
<input type="text" name="email2" custom="eq|email1" />
</form>
how to collage list of value in custom attribute in tform?