<html>
<head>
<script language=vbscript>
function a()
if instr(document.genForm.aa.value,".")>0 then
msgbox "小鬼，别乱来！"
else
msgbox "恭喜你！成功了！"
end if
end function
</script>
</head>
<body>
<form name=genForm method=post >
<br>请输入想要的个数：<input type=text name=v id=aa>（禁止小数）
<br><input type=button value=OK onclick="a()">
</form>
</body>
</html>
<head>
<script language=vbscript>
function a()
if instr(document.genForm.aa.value,".")>0 then
msgbox "小鬼，别乱来！"
else
msgbox "恭喜你！成功了！"
end if
end function
</script>
</head>
<body>
<form name=genForm method=post >
<br>请输入想要的个数：<input type=text name=v id=aa>（禁止小数）
<br><input type=button value=OK onclick="a()">
</form>
</body>
</html>
<head>
<script language=javascript>
function a()
{
if(document.genForm.aa.value.search(/\./)!==-1)
alert ("不能输入小数哦！");
else
alert ("恭喜你！成功了！");
}
</script>
</head>
<body>
<form name=genForm method=post >
<br>请输入想要的个数：<input type=text name=v id=aa>（禁止小数）
<br><input type=button value=OK onclick="a()">
</form>
</body>
</html>