How to increase width of toolbar button

I load my toolbar using loadxmlstring.
My toolbar items are button type.
I want to increase the width of buttons.
As per api, setwidth is not for button.
I tried adding extra space in the text 'Save ’ this doesn’t affect.
'Save   ’ this gave me error.

Is there a way to do that

You can ry the next approach:

toolbar.loadXML("toolbar.xml", function(){ obj = toolbar.objPull[toolbar.idPrefix+"save_as"].obj; obj.style.width = "200px"; });

Thanks Darya!!
That worked.
Would be better if api provides this.

You are welcome
You can sugget it here:
viewforum.php?f=10
But it is quite custom requirment…