可否知道一个页面的输入框的值是否被用户修改过？急急急急急急

only4u 2004-10-12 09:10:07

客户要求如果其中一个以上的输入框的值修改，关闭时就弹出msgbox提示用户保存!!

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ouyld 2004-10-13

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onchanage

gaofaq 2004-10-13

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saucer 2004-10-12

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try

<HTML>
<HEAD>
<SCRIPT>
function closeIt()
{
if (checkValue())
event.returnValue = "data has been changed, please save it first";
}

function checkValue()
{
var es = document.form1.elements;
for (var i=0; i < es.length; i++)
{
if (es[i].type == "text" && es[i].value != es[i].defaultValue)
return true;
}

return false;
}
</SCRIPT>
</HEAD>
<BODY onbeforeunload="closeIt()">
<form name="form1">
<input name=txt>
</form>
<a href="http://www.microsoft.com">Click here to navigate to
www.microsoft.com</a>
</BODY>
</HTML>

honger0923 2004-10-12

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set mylb= myform.fend
for i=0 to mylb.options.length-1
ii=mylb.selectedIndex
next
if myform.fend.selectedIndex<>-1 then
myfend= myform.fend.options(ii).value
else
myfend=1 '末级
end if

ttyp 2004-10-12

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
<SCRIPT LANGUAGE="JavaScript">

</SCRIPT>
</HEAD>

<BODY onunload="save();">
<FORM METHOD=POST ACTION="">
<INPUT TYPE="text" NAME="hello" onchange="setFlag();">
<INPUT TYPE="hidden" name="flag">
</FORM>
</BODY>
</HTML>