Microsoft Dynamics CRM 2011 - Optionset JavaScript

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  Hi,

  I have a optionset on the accounts entity and a multiple lines of text field on the form. When you select different options on the optionset, I have written some javascript which generates text in the  multiple lines of text field. This works fine, except when I have selected numerous options and text has been generated, when I select the null the text in the multiple lines of text field is not cleared. I have the below code, can anyone explain to me why this doesnt fire (exception is generated).

  if(Xrm.Page.getAttribute("optionset").getSelectedOption() != null)
   {
    Xrm.Page.getAttribute("multiplelinesoftext").setValue(null);
   }

  Thanks
  

  Tuesday, November 12, 2013 8:38 AM