jQuery Grid Plugin - jqGrid

How i can send data from a multiselectbox to the PHP script? In PHP i defined the name for the selectbox like this "MySelectBox[]" and now all selected values ar send as array to the PHP script. How i can do this in Grid?

I have defined in the colModel with name "ReportPlanDasy[]" like this

{name:'ReportPlanDays[]', index:'ReportPlanDays', width:70, editable:true,edittype:"select",editoptions: {multiple:true,size:7,value:"1:monday;2:tuesday....

When i open a Form for editing exist row or add a new row, i recive the following error

[Exception... "'Syntax error, unrecognized expression: ]' when calling method: [nsIDOMEventListener::handleEvent]"  nsresult: "0x8057001e (NS_ERROR_XPC_JS_THREW_STRING)"  location: "<unknown>"  data: no]
http://epac.local/scripts/js/jquery/js/min/grid.formedit-min.js
Line 6

jqGrid version: 3.4.3

P.S.

whit jqGrid version 3.3.2 i have this problem not.