settimeout问题
我的总是在settimeout处提示缺少对象代码如下:
<HTML>
<HEAD>
<TITLE>彩虹文字</TITLE>
<meta http-equiv="Content-Type" content="text/html;charset=gb2312">
<script language=JavaScript>
<!--
ns4=(document.layers)? true:false
ie4=(document.all)? true:false
function init(){
if(ns4)block=document.move
if(ie4)block=move.style
block.xpos=parseInt(block.left)
}
function go(){
if(block.xpos<200){
block.xpos+=5
block.left=block.xpos
}
else block.xpos=0
SetTimeout("go()",20)
}
//-->
</script>
</HEAD>
<BODY bgcolor="#ffffff" onload=init()>
<div id="mask" style="position:absolute;width;350px;left:200px;height:60px;z-index:2;
filter:Mask(color=#ffffff);width=350;font:36pt 宋体;">
<b>五彩缤纷的文字</b></div>
<div id="Layer2" style="positon:absolute;width:750px;left:0px;height:60px;z-index:1;
clip:rect(0 550 60 200)">
<div id="move" style="position:absolute;width:550px;left:0px;height:60px;
z-index:1;background-image:url(1_2/bac.gif);border:1px none #000000">
</div>
</div>
<div id="Layer1" style="positon:absolute;width:155px;left:200px;height:33px;
z-index:3;left:55px;top:91px">
<input type="button" name="Button" value="移动背景": onclick=go()>
</div>
</BODY>
</HTML>