log

log.js

function PrintLog(p){
	var d = document,
		df = d.createDocumentFragment(),
		p = p || 'result',
		r = d.getElementById(p);

	return function(s){
		df.appendChild(d.createTextNode(s));
		df.appendChild(d.createElement('br'));
		r.appendChild(df);
	}
}

// sample
// constractor option is document.getElementById(option);

var log = new PrintLog('result');
log('hoge');
log('hogehogehoge');