jquery function by datattribute code example
Example 1: jquery data attribute
/* html */
<a data-number="123">link</a>
/* js */
$(this).attr("data-number") // returns string "123"
$(this).data("number") // returns number 123 (jQuery >= 1.4.3 only)
Example 2: jquery get data attribute
<a data-id="123">link</a>
var id = $(this).data("id"); // Will set id to 123