Setting a boolean attribute with jquery

Try using .prop to deal with boolean that is for supported attributes like selected/disabled/checked e.t.c

$('#element').prop('attribute', true);

from jQuery docs, (an example)

elem.checked returns true (Boolean) Will change with checkbox state

$(elem).prop("checked") returns true (Boolean) Will change with checkbox state

elem.getAttribute("checked") returns "checked" (String) Initial state of the checkbox; does not change

$(elem).attr("checked")(1.6) returns "checked" (String) Initial state of the checkbox; does not change

$(elem).attr("checked")(1.6.1+) returns "checked" (String) Will change with checkbox state

$(elem).attr("checked")(pre-1.6) returns true (Boolean) Changed with checkbox state

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