Xml parsing problem

hi, i have an xml of following type

<a>123</a>
<b>456</b>
<c>789</c>
<d>123</d>
<e>456</e>
<f>7789</f>

i have this in a XMLList name myxml…

now am accessing like myxml[0], myxml[1], myxml[2]…

but am not sure of the order on which it ll come, so i cant access like that, so i want to access them with the property names, i mean a,b,c,d,e…

how to do that

like if i need “e” in myxml, i should get “456”…how to do that…

i tried trace(myxml.child(“e”)); , but it dint work… what to do
pls tel