How to open the dhtmlXCombo drop-down list by script?

Hi, I’m trying to open the drop-down list by script, instead of clicking on the pull-down arrow.

Is there a way to do this in the API?



What I am trying to accomplish is when the page is loaded, the drop down is automatically open without people having to click on the pull-down arrow.

Can be done by next command

    combo.openSelect();