js wildcard conditon

[Anon]

<input name="box0"
<input name="box1"
<input name="box2"
<input name="box3"
<input name="box4"
<input name="box5" ...

the following but gets me only #4

if (dml.elements.name==box+'4')

how do i say:
if (dml.elements.name==box+'*')

where the wild card is any number?
must be a simple js syntax solution, just can't find it.

thank you!

[Anon]

i wound up using this and it works though it seems like there should be a better way

if (dml.elements.name.substring(0,8)=='box')