var sSep = "/";
function myToString()
{
return this.getFullYear() + sSep + (this.getMonth()+1) + sSep + this.getDate();
}
Date.prototype.toString = myToString;
var str = "2002-11-12";
var re = /^(\d{4})(\S)(\d{1,2})\S(\d{1,2})$/;
var dt;
if (re.test(str))
{
sSep = RegExp.$2;
dt = new Date(RegExp.$1,RegExp.$3 - 1,RegExp.$4);
}
<script>
var str = "2002-11-12";
var re = /^(\d{4})\S(\d{1,2})\S(\d{1,2})$/;
var dt;
if (re.test(str))
{
dt = new Date(RegExp.$1,RegExp.$2 - 1,RegExp.$3);
}
alert(dt);
</script>