JS: parse XML

xml_utils.js

//	++ Condense XML
//----------------------------------------------
String.prototype.trimXML = function () {
    return this.replace(/>[\s]*</g, "><");
};

//	++ Return the content of a tag
//----------------------------------------------
String.prototype.getTag = function (tag) {
    var array = this.match(new RegExp('\\<' + tag + '\\>(.*?)(?=\\<\\/' + tag + '\\>)'));
    return array ? array[1] : array;
};

//	++ Return an array the content of tags
//----------------------------------------------
String.prototype.getTags = function (tag) {
    var array = this.match(new RegExp('\\<' + tag + '\\>(.*?)(?=\\<\\/' + tag + '\\>)', 'g')),
        num;
    num = array.length || 0;
    while (num) {
        array[num - 1] = array[num - 1].replace(new RegExp('<' + tag + '>'), "");
        num--;
    }
    return array;
};