Converting Date to number

[infinity]

Hello Guys,

Having problems converting a date (i.e. 12/12/2004) to a numerical format. Using flash MX 2K4. Flash keeps on returning NaN? Code posted below:

var my_str = eval(currentColumnVal2);
var my_array:Array = my_str.split("/");
var new_array:Array = new Array();
new_array[0] = my_array[2];
new_array[1] = my_array[1];
new_array[2] = my_array[0];
var tmp_currentColumnDate = new_array.join(",");
var my_date:Date = new Date(tmp_currentColumnDate);
var mynum:Number = my_date.getTime();
trace(mynum); //Will return 'NaN'
trace(tmp_currentColumnDate); //Will return '2004,10,12'
trace(eval(currentColumnVal2));//Will return '12/10/2004'


Any ideas would be greatly appretiated,

Oli