Display text fields based on value

I have a form that has 7 text fields that are to be filled out. I have an ajax process that auto-populates those 7 fields with values based off of the return value of a pop-up dynamic LOV. Is there any way that I can hide the last 5 fields based on a certain value of one of the text fields?
For example, my fields are:
P1_Badge (LOV query)
P1_First_Name
P1_Last_Name
P1_Title
P1_Phone
P1_Room_No
P1_Email
P1_Fax
The LOV returns a Badge number and populates the rest of the values. But if the Last_Name = 'Smith' then I only want to display Badge, First_Name, and Last_Name and I want to hide the rest of the fields or make them disabled for editing.
Is this possible without any kind of page submit?
Thanks,
Dirk

Hello,
Take a look at this page http://apex.oracle.com/pls/otn/f?p=11933:39 it has examples of what you want.
Regards,
Carl
blog : http://carlback.blogspot.com/
apex examples : http://apex.oracle.com/pls/otn/f?p=11933:5

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    The select one of them and in the Object > Binding palette, set the binding to Global.
    In the dropdown go to the Object > Binding palette and make sure that "Specify values" is NOT ticked.
    It is probably a good idea to set the textfield to read only, in the Object > Value palette. This would prevent the user overwriting the value set by the dropdown.
    No script required. Whatever is in the dropdpwn will appear in the textfield.
    The second issue needs a small script in the calculate event of the second textfield. This looks at the value in the first textfield (TextField1) and sets its own value. This is JavaScript:
    if (TextField1.rawValue == "Option B")
         this.rawValue = "Specific text";
    else
         this.rawValue = null;
    There are some examples here: http://assure.ly/jtTkdO, http://assure.ly/fYCuQ2.
    Hope that helps,
    Niall

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