后台代码自制js与火狐兼容的问题

Question

在IE下没有问题，在火狐下就不行了。请教怎么解决？Response.Write("<form id='form1' method='post' action='reg.aspx'></form>");
Response.Write("<script>document.forms["form1"].submit();</script>");

Answer 1

 <form name='form1' id='form1' method='post' action='reg.aspx'>213</form>
<script>alert(document.forms["form1"].submit);</script>
 

Answer 2

Response.Write("<form id='form1' method='post' action='reg.aspx'>"
+"<script>document.forms["form1"].submit();</script>"
+"</form>");

Answer 3

Response.Write("<form id='form1' method='post' action='reg.aspx'>"
+"<script>document.forms[\"form1\"].submit();</script>"
+"</form>");