Custom value for select_filter in header

In the select_filter in header, the blank value represents all the values. Instead of displaying it as blank, we i want to display as All.

I have attached a function on XLE. I have two select filters in my header.

function changeOption(gridObj,numOfRows)    {

var opt= gridObj.hdr.getElementsByTagName (“SELECT”);





the innerHtml that alerts is:

SO i cant change text of the first option.

Could you suggest some way?

Please check this article … t=5&q=8288