function submit(e){var error=false,field;if(requiredFields.length>0){for(var i=0;i<requiredFields.length;i++){field=$(requiredFields[i]);field.removeClassName('error');if(field.value.strip()==''){error=true;field.addClassName('error');}}}
if(error){alert("Please complete highlighted fields");Event.stop(e);}}
Event.observe(window,'load',function(){$('submitBtn').observe('click',submit);});