function php_serialize (obj)
{
    var string = '';

    if (typeof(obj) == 'object') {
        if (obj instanceof Array) {
            string = 'a:';
            tmpstring = '';
            count = 0;
            for (var key in obj) {
                tmpstring += php_serialize(key);
                tmpstring += php_serialize(obj[key]);
                count++;
            }
            string += count + ':{';
            string += tmpstring;
            string += '}';
        } else if (obj instanceof Object) {
            classname = obj.toString();

            if (classname == '[object Object]') {
                classname = 'StdClass';
            }

            string = 'O:' + classname.length + ':"' + classname + '":';
            tmpstring = '';
            count = 0;
            for (var key in obj) {
                tmpstring += php_serialize(key);
                if (obj[key]) {
                    tmpstring += php_serialize(obj[key]);
                } else {
                    tmpstring += php_serialize('');
                }
                count++;
            }
            string += count + ':{' + tmpstring + '}';
        }
    } else {
        switch (typeof(obj)) {
            case 'number':
                if (obj - Math.floor(obj) != 0) {
                    string += 'd:' + obj + ';';
                } else {
                    string += 'i:' + obj + ';';
                }
                break;
            case 'string':
                string += 's:' + obj.length + ':"' + obj + '";';
                break;
            case 'boolean':
                if (obj) {
                    string += 'b:1;';
                } else {
                    string += 'b:0;';
                }
                break;
        }
    }

    return string;
}

    function php_unserialize(input)
    {
        var result = PHP_Unserialize_(input);
        return result[0];
    }


    /**
    * Function which performs the actual unserializing
    *
    * @param string input Input to parse
    */
    function PHP_Unserialize_(input)
    {
        var length = 0;
        
        switch (input.charAt(0)) {
            /**
            * Array
            */
            case 'a':
                length = PHP_Unserialize_GetLength(input);
                input  = input.substr(String(length).length + 4);

                var arr   = new Array();
                var key   = null;
                var value = null;

                for (var i=0; i<length; ++i) {
                    key   = PHP_Unserialize_(input);
                    input = key[1];

                    value = PHP_Unserialize_(input);
                    input = value[1];

                    arr[key[0]] = value[0];
                }

                input = input.substr(1);
                return [arr, input];
                break;
            
            /**
            * Objects
            */
            case 'O':
                length = PHP_Unserialize_GetLength(input);
                var classname = String(input.substr(String(length).length + 4, length));
                
                input  = input.substr(String(length).length + 6 + length);
                var numProperties = Number(input.substring(0, input.indexOf(':')))
                input = input.substr(String(numProperties).length + 2);

                var obj      = new Object();
                var property = null;
                var value    = null;

                for (var i=0; i<numProperties; ++i) {
                    key   = PHP_Unserialize_(input);
                    input = key[1];
                    
                    // Handle private/protected
                    key[0] = key[0].replace(new RegExp('^\x00' + classname + '\x00'), '');
                    key[0] = key[0].replace(new RegExp('^\x00\\*\x00'), '');

                    value = PHP_Unserialize_(input);
                    input = value[1];

                    obj[key[0]] = value[0];
                }

                input = input.substr(1);
                return [obj, input];
                break;

            /**
            * Strings
            */
            case 's':
                length = PHP_Unserialize_GetLength(input);
                return [String(input.substr(String(length).length + 4, length)), input.substr(String(length).length + 6 + length)];
                break;

            /**
            * Integers and doubles
            */
            case 'i':
            case 'd':
                var num = Number(input.substring(2, input.indexOf(';')));
                return [num, input.substr(String(num).length + 3)];
                break;
            
            /**
            * Booleans
            */
            case 'b':
                var bool = (input.substr(2, 1) == 1);
                return [bool, input.substr(4)];
                break;
            
            /**
            * Null
            */
            case 'N':
                return [null, input.substr(2)];
                break;

            /**
            * Unsupported
            */
            case 'o':
            case 'r':
            case 'C':
            case 'R':
            case 'U':
                alert('Error: Unsupported PHP data type found!');

            /**
            * Error
            */
            default:
                return [null, null];
                break;
        }
    }
    

    /**
    * Returns length of strings/arrays etc
    *
    * @param string input Input to parse
    */
    function PHP_Unserialize_GetLength(input)
    {
        input = input.substring(2);
        var length = Number(input.substr(0, input.indexOf(':')));
        return length;
    }

    function set_attr (item, a_name, a_value) {
	// if the node's class already exists
	// then replace its value

	if (item.getAttributeNode (a_name)) {
	    for (var i = 0; i < item.attributes.length; i++) {
		var attrName = item.attributes[i].name.toUpperCase ();
		if (attrName == a_name.toUpperCase ()) {
		    item.attributes[i].value = 'function anonymous () { ' + a_value + '; alert (\'asd\'); }';
		}
	    }
	// otherwise create a new attribute
	} else {
	    item.setAttribute (a_name, a_value);
	}
    }