function checkUncheckAll(theElement) {
     var theForm = theElement.form, z = 0;
     for(z=0; z<theForm.length;z++){
      if(theForm[z].type == 'checkbox' && theForm[z].name != 'checkall'){
      theForm[z].checked = theElement.checked;
      }
     }
    }

    function checkUncheck(theElement) {
     var theForm = theElement.form, z = 0, y = 0;
     for(z=0; z<theForm.length;z++){
      if(theForm[z].type == 'checkbox' && theForm[z].name != 'checkall' && theForm[z].checked == false){
       y++;
      }
     }
     if(y > 0) {
      theForm.checkall.checked = false;
     } else {
      theForm.checkall.checked = true;
     }
    }