Form Question

Hi, I am hopeing someone can help me with this. This is more of a javascript problem I suppose. I have a bunch of check boxes on a from that I have given a name of rgItems[] so I can access them as an array in php. But I can't find a way to clear all the checkboxes on the form at once. a reset button only resets the form to the original values, but I need to be able to clear all the check boxes. <SCRIPT LANGUAGE="JavaScript"> <!-- function ClearLevelListForm() { for (var i=0;i<document.LevelListForm.elements.length;i++) { if (document.LevelListForm.elements[i].checked == true) { alert(document.LevelListForm.elements[i].value); document.LevelListForm.elements[i].checked = false; } } } //--> </script> I do get the correct alerts from the above script corresponding to the number of checked boxes, however, the second line does not seem to be unchecking the boxes. I am not sure if this has something to do with the fact that all the boxes have the same name rgItems[] and the browser doesn't know which one to uncheck. Has anybody else come accross this? Thanks, And I apologize for asking this question on the PHP List, but I am hoping someone here may have had the same problem when name mutliple form elements using the array style: blah[]