settimeout方法
请各位大侠能帮我看看这脚本有什么错啊,谢谢
<html> <head>
<script language="vbscript">
x = 0
sub countSecond( )
x = x+1
document.fm.displayBox.value=x
setTimeout("countSecond( )", 1000)
end sub
</script> </head>
<body bgcolor=lightcyan text=red> <p> </br>
<form name=fm>
<input type="text" name="displayBox" value="0" size=4 >
</form>
<script>
countSecond( )
</script>
</body> </html>
为什么不能执行呢,