Need a JavaScript for a dropdown list to trigger 2 different check boxes

You can use something like this code as the custom validation script of the drop-down field (make sure to tick the "Commit selected value immediately" box under its Properties - Options):

if (event.value=="Option1" || event.value=="Option2" || event.value=="Option3")

    this.getField("Checkbox1").value = "1";

else this.getField("Checkbox1").value = "2";

You'll probably need to adjust the field names and values in the code. This is just a generic example.

Solution to this problem is quite simple...... contact me for answer