var a = Math.ceil(Math.random() * 10);
var b = Math.ceil(Math.random() * 10);       
var c = a + b
function DrawBotBoot(){
	document.write("<b>"+ a + "</b> + <b>" + b +"</b>");
}   
    
function submitForm(form){
	var err = 0;
	$(form).getElements('input[check!=""],textarea').each(
		function(itm, idx){
			err += parseInt(eval('check'+itm.getProperty('check'))(itm.id,itm.getProperty('alert')));			
		}//each
	); 
	if(err==0) $(form).submit();
}//submitForm

function insertError(text,element){
	new Element('span', {
		'html': text,'id':'err_'+element,
		'class': 'formerror'      
	}).inject($(element), 'after');
}//insertError

function deleteError(element){
	$('err_'+element).destroy();
}//deleteError

function checkrequired(element,notice){
	if(isEmpty($(element).value)){ 
		if($chk($('err_'+element))) deleteError(element);		
		insertError(notice,element);
		return 1;
	}else{ 
		if($chk($('err_'+element))) deleteError(element);	
		return 0;
	}//if
}//checkrequired

function checkemail(element,notice){
	var re = /^[^\s()<>@,;:\/]+@\w[\w\.-]+\.[a-z]{2,}$/i
	if(!re.test($(element).value) || isEmpty($(element).value)){ 
		if($chk($('err_'+element))) deleteError(element);		
		insertError(notice,element);
		return 1;
	}else{ 
		if($chk($('err_'+element))) deleteError(element);	
		return 0;
	}//if
}//checkemail

function checkcode(element,notice){
	var d = $(element).value;
	if(d != c){ 
		if($chk($('err_'+element))) deleteError(element);		
		insertError(notice,element);
		return 1;
	}else{ 
		if($chk($('err_'+element))) deleteError(element);	
		return 0;
	}//if
}//checkcode

function isEmpty(str){
	str = trim(str);
	return (str == null) || (str.length == 0);
}//isEmpty

function trim(value) {
  value = value.replace(/^\s+/,'');
  value = value.replace(/\s+$/,'');
  return value;
}