<form name=form1>
<input name=haha>
<input name=haha2>
<input type=button value="提交" onclick=gonext()>
</form>
<script language=javascript>
function gonext()
{
if(document.getElementById("haha").value=="")
{
if(document.getElementById("haha2").value=="")
{
alert("错误");
}
else
{
document.getElementById("haha").value=document.getElementById("haha2").value
}
}
else
{
if(document.getElementById("haha2").value=="")
{
document.getElementById("haha2").value=document.getElementById("haha").value
}
}
form1.submit()
}
</script>
<input name=haha>
<input name=haha2>
<input type=button value="提交" onclick=gonext()>
</form>
<script language=javascript>
function gonext()
{
if(document.getElementById("haha").value=="")
{
if(document.getElementById("haha2").value=="")
{
alert("错误");
}
else
{
document.getElementById("haha").value=document.getElementById("haha2").value
}
}
else
{
if(document.getElementById("haha2").value=="")
{
document.getElementById("haha2").value=document.getElementById("haha").value
}
}
form1.submit()
}
</script>
<input name=haha>
<input name=haha2>
<input type=submit value="提交">
</form><SCRIPT LANGUAGE="JavaScript">
function gonext(frm)
{
var s1 = frm.haha.value;
var s2 = frm.haha2.value;
var s = s1 || s2;
if(s=="") {alert("两个文本框为空了"); return false;}
frm.haha.value = frm.haha2.value = s;
return true;
}
</SCRIPT>
<form name=form1>
<input name=haha>
<input name=haha2>
<input type=button value="提交" onclick=gonext()>
</form>
<script language=javascript>
function gonext()
{
if(document.getElementById("haha").value=="")
{
if(document.getElementById("haha2").value=="")
{
alert("错误");
return;
}
else
{
document.getElementById("haha").value=document.getElementById("haha2").value
}
}
else
{
if(document.getElementById("haha2").value=="")
{
document.getElementById("haha2").value=document.getElementById("haha").value
}
}
form1.submit()
}
</script>