MS CRM 4.0 Certain fields appear only if a certain answer is selected?

I would like to know if it was possible to make certain fields invisible until the question linked to them is selected to Yes. Then other 开发者_运维知识库fields pop up to go into more detail. I'm not sure if CRM can do this, but if so I would like to know how.

On your onLoad function put the following

crmForm.all.field.style.display = 'none';
crmForm.all.field_c.style.display = 'none';

Then on the onChange event of the field you're monitoring put this to show the field:

crmForm.all.field.style.display = 'inline';
crmForm.all.field_c.style.display = 'inline';