ForceSubmit in ASP.Net

Today I've been working on a simple IFrame. This IFrame shows 3 dynamic picklists and the data in these picklists is coming from crm. Since some clients are a bit slow, I would like the picklists to be disabled while the postback is being performed. This is easily done with this script:function disableFields(field1, field2){ field1.disabled = true; field2.disabled = true;}BlogThis!