clone: function (arr)
{
if(typeof(arr)==’null’ || typeof(arr)==’undefined’)
return new Object();

var i, _i, temp;
if(typeof arr !== ‘object’)
return arr;

else
{
if(arr.concat)
{
temp = [];
for(i = 0, _i = arr.length; i < _i; i++)
temp[i] = arguments.callee(arr[i]);
}
else
{
temp = {};
for(i in arr)
temp[i] = arguments.callee(arr[i]);

}
return temp;
}
}