A. name:返回表单的名称 B. action:返回/设定表单的提交地址 C. targe:返回/设定表单提交内容的编码方式 D. length:返回该表单所含元素的数目
A. open() B. go() C. alert () D. setTimeout()
A. forms B. cookie C. images D. open
A. document.forms.username B. document.mainForm.username C. document.forms.UserName D. document.MainForm.UserName
A. forward() B. go(0) C. back() D. go()