I've got a survey with a drilldown and a matrix table. The drilldown is two levels, department and employee. The contact list has embedded data called "ExcludeEmployee". Upon entering the survey, the first question is the drilldown. I want to use the embedded data "ExcludeEmployee" to exclude that value from the available choices in the drilldown for the employee level. Here is an example:

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<div class="QuestionOuter BorderColor DD QID1" id="QID1" questionid="QID1" posttag="QID1" data-runtime-remove-class-hidden="runtime.Displayed"> <div id="QR~QID1~VALIDATION" class="ValidationError" role="alert" data-runtime-show="runtime.ErrorMsg" data-runtime-html="runtime.ErrorMsg" style="display: none;"></div> <div id="QR~QID1~SDPVALIDATION" class="ValidationError" role="alert" data-runtime-show="runtime.PDPErrorMsg" data-runtime-html="runtime.PDPErrorMsg" style="display: none;"></div> <div class="Inner BorderColor DL"> <div class="InnerInner BorderColor"> <fieldset aria-describedby="QR~QID1~VALIDATION QR~QID1~SDPVALIDATION"> <legend> <div class="QuestionText BorderColor">Identify the person you interacted with:</div></legend><div class="QuestionBody"> <table role="presentation" class="ChoiceStructure" cellpadding="0" cellspacing="0"> <tbody> <tr class="reg"> <td> <label for="QR~QID1~1">Department</label> </td> <td> <!-- the html binding blows aways the value binding, so do that last--> <select class="drillDownSelectDropDown QWatchTimer" name="QR~QID1~1" id="QR~QID1~1" data-runtime-select-options="runtime.Choices.1.optionHTML" data-runtime-enabled="runtime.Choices.1.enabled" data-runtime-value="runtime.Choices.1.Value"><option aria-label="Blank"></option>
<option value="1">Human Resources</option>
<option value="5">Accounting</option>
<option value="9">Sales</option></select> </td> </tr> <tr class="alt"> <td> <label for="QR~QID1~2">Employee</label> </td> <td> <!-- the html binding blows aways the value binding, so do that last--> <select class="drillDownSelectDropDown QWatchTimer" name="QR~QID1~2" id="QR~QID1~2" data-runtime-select-options="runtime.Choices.2.optionHTML" data-runtime-enabled="runtime.Choices.2.enabled" data-runtime-value="runtime.Choices.2.Value"><option aria-label="Blank"></option>
<option value="2">Mickey Mouse</option>
<option value="3">Pluto</option>
<option value="4">Donald Duck</option></select> </td> </tr> </tbody> </table></div> </fieldset> </div> </div> </div>

The embedded data "ExcludeEmployee" may contain "Mickey Mouse", in which case I'd want to hide that employee from the second choice group in the drilldown (dropdowns). I need to expose this embedded data somehow to the javascript for use, I'm not familiar enough to suggest/know how that might be done.

It's probably important to note that the above image displays what I see after I choose a department from the drilldown. By default, upon entering the survey, there are only choices in the department level of the drilldown and the employee level is empty (because I haven't drilled down into a department yet). Here is the code for the drilldown in it's default state after entering the survey:

<div class="QuestionOuter BorderColor DD QID1" id="QID1" questionid="QID1" posttag="QID1" data-runtime-remove-class-hidden="runtime.Displayed"> <div id="QR~QID1~VALIDATION" class="ValidationError" role="alert" data-runtime-show="runtime.ErrorMsg" data-runtime-html="runtime.ErrorMsg" style="display: none;"></div> <div id="QR~QID1~SDPVALIDATION" class="ValidationError" role="alert" data-runtime-show="runtime.PDPErrorMsg" data-runtime-html="runtime.PDPErrorMsg" style="display: none;"></div> <div class="Inner BorderColor DL"> <div class="InnerInner BorderColor"> <fieldset aria-describedby="QR~QID1~VALIDATION QR~QID1~SDPVALIDATION"> <legend> <div class="QuestionText BorderColor">Identify the person you interacted with:</div></legend><div class="QuestionBody"> <table role="presentation" class="ChoiceStructure" cellpadding="0" cellspacing="0"> <tbody> <tr class="reg"> <td> <label for="QR~QID1~1">Department</label> </td> <td> <!-- the html binding blows aways the value binding, so do that last--> <select class="drillDownSelectDropDown QWatchTimer" name="QR~QID1~1" id="QR~QID1~1" data-runtime-select-options="runtime.Choices.1.optionHTML" data-runtime-enabled="runtime.Choices.1.enabled" data-runtime-value="runtime.Choices.1.Value"><option aria-label="Blank"></option>
<option value="1">Human Resources</option>
<option value="5">Accounting</option>
<option value="9">Sales</option></select> </td> </tr> <tr class="alt"> <td> <label for="QR~QID1~2">Employee</label> </td> <td> <!-- the html binding blows aways the value binding, so do that last--> <select class="drillDownSelectDropDown QWatchTimer" name="QR~QID1~2" id="QR~QID1~2" data-runtime-select-options="runtime.Choices.2.optionHTML" data-runtime-enabled="runtime.Choices.2.enabled" data-runtime-value="runtime.Choices.2.Value" disabled=""></select> </td> </tr> </tbody> </table></div> </fieldset> </div> </div> </div>

So I need to have javascript that runs any time the second choice group is populated to exclude the choice from those that are being populated? Does anyone have a solution or suggestions on how I might accomplish this?

Also, separately from the above, I will need to do this same thing to multiple choices in the employee level of the drilldown based on a comma delimited list of exclusions in embedded data. For instance, "Mickey Mouse,Pluto" in an embedded data field called "ExcludeEmployeeMultiple". I suppose it doesn't matter whether or not it's separate, it just matters that the javascript function that is doing the filtering/exclusion can handle multiple input values, of type comma delimited list (in which case the first example would be a list with only one value). Or I need to be able to run the function once for each of the embedded data fields mentioned.

Thank you in advance for your consideration and help.