// JavaScript Document
Array.prototype.in_array = function ( obj ) {
	var len = this.length;
	for ( var x = 0 ; x <= len ; x++ ) {
		if ( this[x] == obj ) return true;
	}
	return false;
}
String.prototype.trim =  function () {
	var regExpBeginning = "/^\s+/";
var regExpEnd       = "/\s+$/";
    return this.replace(regExpBeginning, "").replace(regExpEnd, "");
}