delegate() issue

delegate() issue

I had a issue with live() with change event in IE ,that is drop down do not invoke the function on change ,to solve this issue i used delegate().it was working fine with both IE and mozilla.now the another problem i am facing is when i add multiple drop down for the purpose of search criteria(in all drop down contents are same and all are loaded from the same config file) the delegate function not invoking the function.but drop down has different id and same class name.any one knows alternative solution please reply me.thanks in advance......