href的post方式提交数据

1.

<script language=javascript> 
window.location.href="a.asp?name="+username"
</script> 

2.

<script language=javascript> 
document.write("<form action=a.asp method=post name=formx1 style='display:none'>");
document.write("<input type=hidden name=name value='"+username+"'");
document.write("</form>");
document.formx1.submit();
</script>