Display only the first column

Hey,
I spent all yesterday trying to fix that problem , but still no luck.
Now i think i am close but i have a different problem.

Here is my code (I copied it from the website example)

The problem with this is that i got only the first column to be displayed.
drive.google.com/file/d/0B2FR4L … sp=sharing

the user bmcgin is a hero , he made my day and found out what was the problem.
it’s the column headers. on the website it’s formatted like this:mygrid.setColumnIds(“col1”,“col2”,“col3”);

But you need to format it this way instead:
mygrid.setColumnIds(“col1,col2,col3”);

According to the documentation:
docs.dhtmlx.com/api__dhtmlxgrid_ … mnids.html

Could you, please, share with a link, where the attributes are listed incorrectly, so the documentation can be fixed.