function compact () {

// http://kevin.vanzonneveld.net

// + original by: Waldo Malqui Silva

// + tweaked by: Jack

// + input by: Brett Zamir (http://brett-zamir.me)

// + bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)

// * example 1: var1 = 'Kevin'; var2 = 'van'; var3 = 'Zonneveld';

// * example 1: compact('var1', 'var2', 'var3');

// * returns 1: {'var1': 'Kevin', 'var2': 'van', 'var3': 'Zonneveld'}

var matrix = {},

that = this;

var process = function (value) {

var i = 0,

l = value.length,

key_value = '';

for (i = 0; i < l; i++) {

key_value = value[i];

if (Object.prototype.toString.call(key_value) === '[object Array]') {

process(key_value);

} else {

if (typeof that.window[key_value] !== 'undefined') {

matrix[key_value] = that.window[key_value];

}

}

}

return true;

};

process(arguments);

return matrix;

}