// Bob's Blog Javascript v1.00

// Uncheck other checkboxes
function uncheck_other_items(item_id){
  for(var i = 1; i <= 6; i++){
    if(i != item_id){document.getElementById("item_"+i).checked = false;}
  }
}

// Form validation
function validate_form(){
  var frm = document.frmOrder;
  if(frm.item_1.checked == false && frm.item_2.checked == false && frm.item_3.checked == false && frm.item_4.checked == false && frm.item_5.checked == false && frm.item_6.checked == false){
    alert("Please select a product.");
  }else{
    frm.submit();
  }
}