Change stylesheet of an answer option column in a single grid question

Challenge

In order to highlight an answer option column

As a questionnaire creator

I want to change the style sheet of a specific answer option column in a single grid question

Example

I have a single grid question like below.

I want to change the style of Don't know column.

Code

<source lang="javascript" line="1"> //change style of a SINGLE grid question's answer option column //answerOptionValue: value of the answer option column //newColor: the new background color of the column's cells quest.changeAnswerOptionColumnStyle = function(answerOptionValue, cssClass) {

//change style of answer option text
$("#grid_answeroption_text_" + answerOptionValue).addClass(cssClass);

//change style of answer option cells
$("input:radio").each(
function(i)
{
if ($(this).val() == answerOptionValue)
$(this).parent().addClass(cssClass);
}
)

} quest.onInit = function() {

var dontKnow_value = 3;

this.changeAnswerOptionColumnStyle(dontKnow_value, "another_column_css");

} </source>