Array variable in Javascript & PHP

Hello: In a form I am using a series of check boxes for a number of lists. Some calculations has to be done on the client side using Javascript depending upon the check box values. For this I am using a single variable name (array) for the check boxes in a list and another for the next list and so on. The format I have used is <input type="checkbox" name="list1" value="Education" onclick="addList()"> Education <input type="checkbox" name="list1" value="Profession" onclick="addList()"> Profession I can access these variables from Javascript as list1[0] & list1[1]. (document.form.list1['0'].checked & document.form.list1['1'].checked But when this form is submitted to the PHP script I am getting only the last value. list1 = 'Profession'. I am not getting an array of values. <? for ($i=0; $i<count($list1); $i++) { $listall .= '$list1[$i],'; } ?> How can I accomplish both these operations? I cannot use single variables names for each item in the form, because it is more than 1000. Also I want to use both Javascript & PHP operations. Please help to solve this issue or suggest some other ways to accomplish this business logic. Many Thanks in Advance & Best Regards Sheni R Meledath sheni@cyber-gear.com