数字排序

function sortNumber(a, b)
{
return a - b
}

var arr = new Array(6)
arr[0] = "10"
arr[1] = "5"
arr[2] = "40"
arr[3] = "25"
arr[4] = "1000"
arr[5] = "1"

document.write(arr + "<br />")
document.write(arr.sort(sortNumber))
/*-------------------------------------*/

//result:

10,5,40,25,1000,1
1,5,10,25,40,1000