Loop with attachEventListener

[vunet]

Hi,
How to implement this? I have a global variable var maxGlobalCounter,
myGlobalNumber which store max ID counter and current ID identifier. I
want to make a number of xmlhttp requests which must use
myGlobalNumber to point to correct ID. For example:

for(var i=0;i<maxGlobalCounter; i++){
var obj = document.getElementById("someElem"+i);
myGlobalNumber = i;
if(obj){
//make xmlhttp request, use myGlobalNumber in handler function
}
}

Because I use myGlobalNumber a lot to find correct IDs, I want to
continue loop when myGlobalNumber is reset to "" somewhere in xmlhttp
handler function. Can I use attachEventListener to do that? Any better
ideas?
Thanks.