Hi,
For this u have to post the value of drop down list1 that is selected.
u can post the values by submitting the asp page.u can code onchange event of dropdown list1.
as:
<select name="namesel" onchange="document.formname.action=' ';document.formname.submit()">
by thsi ur asp page will get potsed on chage on the drop down list.
now u can write this statement:
val=request.form("namesel") // this stalement will give u the value of option selected by user.
at very first run the value of "val" will be blank" " , so no problem......
now u can check the value of val for drop down list2.