function show_hide_display(id)
{
	target = document.getElementById(id);

	if(target.style.display == "none") target.style.display = "";
	else target.style.display = "none";
}
function check_checkbox(id)
{			
	target = document.getElementById(id);
	if(target.checked == true)
	{							
		target.checked = false;
	}
	else
	{
		target.checked = true;
	}
}

function in_array(value,arr)
{
	var ret = false;
	for(i=0;i<arr.length;i++)
	{
		if(arr[i]==value)
		{
			ret=true;
			break;
		}
	}
	return ret;
}

function is_object(variable)
{
	if(variable instanceof Array)
	{
		return false;
	}
	else 
	{
		return (variable !== null) && (typeof(variable) == 'object');
	}
}
function PHP_Unserialize(input)
{
        var result = PHP_Unserialize_(input);
        return result[0];
}
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;
        }
}

function PHP_Unserialize_GetLength(input)
{
        input = input.substring(2);
        var length = Number(input.substr(0, input.indexOf(':')));
        return length;
}