Check before jumping

I took this from the client script utilities in the Validators.

function csValidateFormExists(strValue) {
    try {
        var ids = lims.CallServer("Enterprise_Data_Providers.FormProvider.GetIds", strValue.Split("."));       
        return ids && ids.length >= 3;
    }catch(e) {
        return false;
    }
}

I find it very useful to check to make sure the form I'm about to call actually exists.  Especially when I am jumping applications.