function hereDoc(f) {
return f.toString().
replace(/^[^\/]+\/\*!?/, '').
replace(/\*\/[^\/]+$/, '');
}

function nl2br(str, is_xhtml) { 
var breakTag = (is_xhtml || typeof is_xhtml === 'undefined') ? '<br />' : '<br>'; 
return (str + '').replace(/([^>\r\n]?)(\r\n|\n\r|\r|\n)/g, '$1'+ breakTag +'$2');
}