like this:<form action=about:1>
<select name=sel>
<option>form1</option>
<option>form2</option>
</select>
<input type=button value=submit onclick=document.forms[sel.selectedIndex].submit()>
</form>
<form action=about:2>
</form>
<select name=sel>
<option>form1</option>
<option>form2</option>
</select>
<input type=button value=submit onclick=document.forms[sel.selectedIndex].submit()>
</form>
<form action=about:2>
</form>
<!--
window.document.oncontextmenu=function(){return false;};
function form1_onsubmit() {
if(document.all.select1.value==1){
form1.action="a.asp";
}
if(document.all.select1.value==2){
form1.action="b.asp";
}
form1.submit();
}
</SCRIPT>
</HEAD>
<BODY>
<form name=form1 LANGUAGE=javascript onsubmit="return form1_onsubmit()">
<SELECT id=select1 name=select1>
<OPTION value=1 selected
>1</OPTION><OPTION value=2>2</OPTION>
</SELECT>
</form>
<script language=javascript>
function slcTest_onchange(){
if (f2.slcTest.value=="1"){
f1.submit();
}else if(f2.slcTest.value=="2"){
f2.submit();
} else{
alert("未选则提交项!");
}
}
</script>
<form name=f1 action="temp1.html">
</form>
<form name=f2 action="temp2.html">
<select name=slcTest onchange="slcTest_onchange();">
<option>请选择<option>
<option value=1>temp1.html</option>
<option value=2>temp2.html</option>
</select>
</form>
function slcTest_onchange(){
if (f2.slcTest.value=="1"){
f1.submit();
}else if(f2.slcTest.value=="2"){
f2.submit();
} else{
alert("未选则提交项!");
}
}
</script>
<form name=f1 action="temp1.html">
</form>
<form name=f2 action="temp2.html">
<select name=slcTest onchange="slcTest_onchange();">
<option>请选择<option>
<option value=1>temp1.html</option>
<option value=2>temp2.html</option>
</select>
</form>