20100929
1、parent.jsp
---start----
<iframe name="inframe">
inframe.document.forms.ids == null
----end---
child.jsp
parent.document.forms.serialNo.value;
2、
var val = xmlHttp.responseText;
// setMessageOld(val);
var e = document.getElementById("seriesCode");
var td = e.parentNode;
var spans = td.getElementsByTagName("span");
if (spans&&spans.length > 0)
{
for(var i = 0; i < spans.length; i++)
{
td.removeChild(spans);
}
}
var error = document.createTextNode(val);
var span = document.createElement("span");
span.setAttribute("class", "errorMessage");
span.setAttribute("className", "errorMessage"); //ie hack cause ie does not support setAttribute
span.appendChild(error);
td.appendChild(span);
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