jquery ifream 统制ifream的src 或者location 兼容ff 和ie

<iframe? id="ifr_a" name="ifr_b" frameborder="0" frameborder="0" scrolling="no"></iframe>

?

设置ifream的访问路径

document.getElementById("ifr_a").contentWindow.location.href?? = url_a;

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jquery 监听

$("#ifr_a").bind("load",function(){
?? ?var url = document.getElementById("ifr_a").contentWindow.location.href;
?? ?alert(url)

?});