자바스크립트 선언이 두번되면 안되나요?

</p>

<p><html>

<head>

<title>Untitled Document</title>

<meta http-equiv="Content-Type" content="text/html; charset=euc-kr">

<script language=javascript> 

<!--   </p>

<p>var bennerHeight = 223;

var heigthBlank = 274;</p>

<p>var isDOM = (document.getElementById ? true : false);  

var isIE4 = ((document.all && !isDOM) ? true : false); 

var isNS4 = (document.layers ? true : false); </p>

<p>function getRef(id) { 

if (isDOM) return document.getElementById(id); 

if (isIE4) return document.all[id]; 

if (isNS4) return document.layers[id]; 

}  </p>

<p>var isNS = navigator.appName == "Netscape";  </p>

<p>function moveRightEdge() { 

var yMenuFrom, yMenuTo, yOffset, timeoutNextCheck;  </p>

<p>if (isNS4) { 

yMenuFrom   = divMenu.top; 

yMenuTo     = windows.pageYOffset + 100; 

} else if (isDOM) { 

yMenuFrom   = parseInt (divMenu.style.top, 10); 

yMenuTo     = (isNS ? window.pageYOffset : document.body.scrollTop) + heigthBlank; 

} 

timeoutNextCheck = 30;  </p>

<p>if (yMenuFrom != yMenuTo) { 

yOffset = Math.ceil(Math.abs(yMenuTo - yMenuFrom) / 20); 

if (yMenuTo < yMenuFrom) 

yOffset = -yOffset; 

if (isNS4) 

divMenu.top += yOffset; 

else if (isDOM) 

divMenu.style.top = parseInt (divMenu.style.top, 10) + yOffset; 

timeoutNextCheck = 5; 

} 

setTimeout ("moveRightEdge()", timeoutNextCheck); 

} 

--> </script></p>

<p></head></p>

<p> </p>

<p> </p>

<p><body>

<!--레이어 크기와 위치는 자유자제로 움직이시믄 됩니다.-->

<div id="divMenu" style="position: absolute; left: 1578px; top: 55px; width: 30px; height: 25px; z-index: 1"><img src="/sunflimg/btn_top.png" width="30" height="25"> 

</div>

<script language=javascript> 

<!-- 

if (isNS4) { 

 var divMenu = document["divMenu"]; 

 divMenu.top = top.pageYOffset + 100; 

 divMenu.visibility = "visible"; 

 moveRightEdge(); 

} else if (isDOM) { 

 var divMenu = getRef('divMenu'); 

 divMenu.style.top = (isNS ? window.pageYOffset : document.body.scrollTop) + 100; 

 divMenu.style.visibility = "visible"; 

 moveRightEdge(); 

} 

//--> 

</script>

<!--레이어-->

</body>

</html></p>

<p>
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자바스크립트 선언이 두번되면 안되나요? 채택완료
