disabled input in jQuery serializeArray();

If an input has attribute disabled, it will not be included in   jQuery serializeArray();
To make it included in jQuery serializeArray(),  we first make it enabled and disabled again
 Example
                var disabled_attr =$('#instructorname').attr("disabled");
                if(disabled_attr=='disabled') $('#instructorname').removeAttr("disabled");
                var postData = $("form").serializeArray();
                if(disabled_attr=='disabled')  $("#instructorname").prop("disabled", true);
To get serializeArray into post bvalue
         dataObj = {};
         for (i=0; i<len; i++) {
           dataObj[postData[i].name] = postData[i].value;
         }
Add more value, some of them from url get
                postData.push({
                        name: "funct",
                        value: "saveGuidelineInfo"
                }, {
                        name: "sid",
                        value: $.url.param('sid')
                },{
                        name: "term",
                        value: $.url.param('term')
                },{
                        name: "instr_section",
                        value: $.url.param('instr_section')
                },{
                        name: "cid",
                        value: $.url.param('cid')
                },{
                        name: "pad_id",
                        value: $.url.param('pad_id')
                }
                );
Final post data
              $.post("../_ajaxParts/TA/SITAContractView.php", postData, function(data) {
                        formatJson(data, 'div#notice', null);
                           });