Every time i click the mouse within the editor, i get a javascript error, object required.

When i debug the JS in visual studio, the highlighted line is :

 

var host = window.open('UploadDialog.aspx?Id=_ctl0' + ((document.getElementById('_ctl0').value!='') ? '&selectedfile=' + document.getElementById('_ctl0').value : ''), 'browse', 'width=700,height=400,status=yes,resizable=yes');

 

I am not sure why it is trying to open a window on every mouse click?

 

Have i got something set wrong?

 

Thanks in advance

 

James Whittaker