IE9 SCRIPT5007: Unable to get value of the property 'form': object is null or und

IE9 SCRIPT5007: Unable to get value of the property 'form': object is null or und

  
Hi guys,

I get the following error in IE9 (outsystems v8.0.0.24) 
SCRIPT5007: Unable to get value of the property 'form': object is null or undefined 

Anybody any clues ?
Result is that some of the buttons don't work.
http://stackoverflow.com/questions/5787245/ie9-javascript-error-script5007-unable-to-get-value-of-the-property-ui-obje


in short, in what mode does IE9 render the page...
and what are the javascript custom codes for checking if something is ie or not.

Yes I do understand, however ... still got this error :-(
And it's only IE9 which is bugging


err, you did not answer my question :)

as I understand it, ie8,10 and 11 do work?

YES SIR ...