这必须熟悉源代码,javascript
代码如下:
下面是百度的:(地址: ) <SCRIPT language=javascript> function gowhere1(formname) { var url; if (formname.myselectvalue.value == "0") { url = " "; document.search_form1.tn.value = "baidu"; formname.method = "get"; } if (formname.myselectvalue.value == "1") { url = " "; document.search_form1.tn.value = "baidump3"; document.search_form1.ct.value = "134217728"; document.search_form1.lm.value = "-1"; } if (formname.myselectvalue.value == "4") {
document.search_form1.tn.value = "news"; document.search_form1.cl.value = "2"; document.search_form1.rn.value = "20"; url = " "; } if (formname.myselectvalue.value == "5") { document.search_form1.tn.value = "baiduiamge"; document.search_form1.ct.value = "201326592"; document.search_form1.cl.value = "2"; document.search_form1.lm.value = "-1"; url = " "; } if (formname.myselectvalue.value == "6") { url = " "; document.search_form1.tn.value = "baiduPostSearch"; document.search_form1.ct.value = "352321536"; document.search_form1.rn.value = "10"; document.search_form1.lm.value = "65536"; }
formname.action = url; return true; } </SCRIPT> <form name="search_form1" target="_blank" onsubmit="return gowhere1(this)"> <table width="460" height="60" border="0" bgcolor="#FFFFFF" cellpadding="0" cellspacing="0" style=font-family:宋体><tr><td> <TABLE width="460" height="80" border=0 cellPadding=0 cellSpacing=0> <INPUT name=myselectvalue type=hidden value=0> <INPUT name=tn type=hidden> <INPUT name=ct type=hidden> <INPUT name=lm type=hidden> <INPUT name=cl type=hidden> <INPUT name=rn type=hidden> <TR> <TD width="8%" valign="bottom"> <DIV align=center><a href=" "><img src=" " alt="Baidu" align="bottom" border="0"></a></DIV></TD> <TD vAlign=bottom width="92%"> <INPUT name=myselect onclick=javascript:this.form.myselectvalue.value=4; type=radio value=0> <FONT color=#0000cc style="FONT-SIZE: 12px">新闻</FONT> <INPUT CHECKED name=myselect onclick=javascript:this.form.myselectvalue.value=0; type=radio value=0>
<SPAN class=f12><FONT color=#0000cc style="FONT-SIZE: 12px">网页</FONT></SPAN> <INPUT name=myselect onclick=javascript:this.form.myselectvalue.value=1; type=radio value=1> <SPAN class=f12><FONT color=#0000cc style="FONT-SIZE: 12px">mp3</FONT></SPAN> <INPUT name=myselect onclick=javascript:this.form.myselectvalue.value=6; type=radio value=0> <FONT color=#0000cc style="FONT-SIZE: 12px">贴吧</FONT> <INPUT name=myselect onclick=javascript:this.form.myselectvalue.value=5; type=radio value=0> <FONT color=#0000cc style="FONT-SIZE: 12px">图片</FONT> <TABLE align=right border=0 cellPadding=0 cellSpacing=0 width="100%"> <TBODY> <TR> <TD><FONT style="FONT-SIZE: 12px"> <input id=word name=word size="40"> </FONT> <input type="submit" value="百度搜索"> </TD></TR> </form>
以上是百度,谷歌也类似