    <!--
	function CheckAll(theElement) {
	 //documentation for this script at http://www.shawnolson.net/a/693/
     var theForm = theElement.form, z = 0;
     while (theForm[z].type == 'checkbox' && theForm[z].name != 'checkall') {
      theForm[z].checked = theElement.checked;
      z++;
     }
    }
	
    function CheckCheckAll() {
        var TotalBoxes = 0;
        var TotalOn = 0;
        for (var i=0;i<document.prvmsg.elements.length;i++) {
            var e = document.prvmsg.elements[i];
            if ((e.name != 'allbox') && (e.type=='checkbox')) {
                TotalBoxes++;
                if (e.checked) {
                    TotalOn++;
                }
            }
        }
        if (TotalBoxes==TotalOn) {
            document.prvmsg.allbox.checked=true;
        } else {
            document.prvmsg.allbox.checked=false;
        }
    }
    //-->