[WGR]

var arr:Array=     new Array();
arr['a']	=     1;
arr['b']	=     2;
arr['c']	=     3;
trace(typeof(arr)); //object

...
arr.push({name:'a',val:1});
arr.push({name:'b',val:2});
arr.push({name:'c',val:3});

trace(arr.length); //3
trace(arr[2].name); //c