Javascript 代码失去焦点
我正在使用以下代码：
<script type="text/javascript">
var Dash = {
nextIndex: 0,
dashboards: [
{url: 'http://www.google.com', time: 5},
{url: 'http://www.yahoo.com', time: 10}
],
display: function()
{
var dashboard = Dash.dashboards[Dash.nextIndex];
parent.document.getElementById("iframe1").src = dashboard.url;
Dash.nextIndex = (Dash.nextIndex + 1) % Dash.dashboards.length;
setTimeout(Dash.display, dashboard.time * 1000);
}
};
window.onload = Dash.display;
</script>
基本上，这是一个将数组中的 url 循环到 iframe 中的例程。当我将 parent.document.getElementById("iframe1").src 设置为 url 时，出现问题；它适用于第一个，但似乎无法循环到下一个。
但是，如果我在此 javascript 的相同上下文中创建一个 iframe，例如 iframe2，而只是使用：
document.getElementById("iframe2").src = dashboard.url;
而不使用 parent.document 调用，则一切正常。
当我发出 parent.document 调用时，它是否会失去 javascript 的焦点？
关于如何在调用 parent.document 时将焦点带回此 javascript 代码，有什么想法吗？
我用的是ie6。
I have the following code that I am playing with:
<script type="text/javascript">
var Dash = {
nextIndex: 0,
dashboards: [
{url: 'http://www.google.com', time: 5},
{url: 'http://www.yahoo.com', time: 10}
],
display: function()
{
var dashboard = Dash.dashboards[Dash.nextIndex];
parent.document.getElementById("iframe1").src = dashboard.url;
Dash.nextIndex = (Dash.nextIndex + 1) % Dash.dashboards.length;
setTimeout(Dash.display, dashboard.time * 1000);
}
};
window.onload = Dash.display;
</script>
Basically it's a routine to cycle through urls in an array into an iframe. My problem occurs when I set parent.document.getElementById("iframe1").src to a url; it works for the first but it doesn't seem to cycle through to the next.
However, if I create an iframe in the same context of this javascript, say iframe2 and instead just use:
document.getElementById("iframe2").src = dashboard.url;
without the parent.document call, all works fine.
Is it losing the focus of the javascript when I issue the parent.document call?
Any ideas on how to bring focus back to this javascript code when calling a parent.document?
I am using ie6.
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此代码更改应该有效。你需要给 iframe 一个名称，其次，我没有在 IE6 中测试它，但可以在 IE7 中工作。
This code change should work. You need to give iframe a name and secondly, I didnt test it in IE6, but works in IE7.
您是否尝试过使用“top”而不是“parent”？
http://www.w3schools.com/jsref/prop_win_top.asp
这样你有绝对的引用，不必担心它实际位于哪个窗口。
Have you tried using 'top' instead of 'parent'?
http://www.w3schools.com/jsref/prop_win_top.asp
That way you have an absolute reference and don't have to worry about which window it actually is in.