What am I doing wrong - obj.setCellText

Ok, getting a little frustrated.

Column 5 has a class Name ("Math 101")
But I need the "Class: " infront of it.

obj.setCellText(function(col, row) {
return "Class: " + this.getCellText(5,row);
},5);

Why doesn't the above work? Why am I still just getting 'Math 101'

The data is coming in from an Array. Nothing complicated. Above I used "getCellText" ... but I've tried many combinations - getCellData, etc.

Thing is, I've done this before - many times - and it's working on those pages. But not here. And I can't see what stupid mistake I'm making.

nvm ... decided to go a different route.