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            } else {
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                removeChat();
                form1.action = "login.do?action=logout";
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 JavaScriptÎĵµ¶ÔÏó(DOM)
navigator
screen
window
history
location
frames[]; Frame
document
anchors[]; links[]; Link
applets[]
embeds[]
forms[]; Form
Button
Checkbox
elements[]; Element
Hidden
Password
Radio
Reset
Select
options[]; Option
Submit
Text
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