The difference between ie6 and ie7 and ff when calling js

< a href="javascript:void(0)" onclick="foo()" >Click< /a >

The same operation above will cause problems when executing under ie6. No ajax data is requested, but there is no problem under ie7 and ff.

So it needs to be modified

<a href="#" onclick="foo()">Click</a>

or

<a href="foo()">Click</a>

That's it