if(Validation) {     
	Validation.addAllThese(
		[      
        	[
            	'validate-regcode',       
            	'Please enter a valid registration code.',    
            	function(v){
            		flagged = 'no';
                	for (var i = 0; i < regcode.size(); i++) {
                    	var theCode = regcode[i];
                    	if (theCode === v) {
                        	flagged = 'yes'; }
                	}
                	return (flagged == 'yes') || Validation.get('IsEmpty').test(v);
            	}   
        	],
        ])
}