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<script language="javascript">
/*
        This script is (c) 2000 Ivanopulo http://www.damn.to
        Please leave this message intact if you use the script.
*/
var bNetscape4plus = (navigator.appName == "Netscape" && navigator.appVersion.substring(0,1) >= "4");
var bExplorer4plus = (navigator.appName == "Microsoft Internet Explorer" && navigator.appVersion.substring(0,1) >= "4");

function CheckUIElements()
{
        var yMenuFrom, yMenuTo, yButtonFrom, yButtonTo, yOffset, timeoutNextCheck;

        if ( bNetscape4plus ) {
                //yButtonFrom = document["divLinkButton"].top;
                //yButtonTo   = top.pageYOffset + top.innerHeight - 55;
                yMenuFrom   = document["divMenu"].top;
                yMenuTo     = top.pageYOffset + 0;
        }
        else if ( bExplorer4plus ) {
                //yButtonFrom = parseInt (divLinkButton.style.top, 10);
                //yButtonTo   = document.body.scrollTop + document.body.clientHeight - 55;
                yMenuFrom   = parseInt (divMenu.style.top, 10);
                yMenuTo     = document.body.scrollTop + document.body.clientHeight - 95;
        }

        timeoutNextCheck = 50;

        if ( Math.abs (yButtonFrom - (yMenuTo + 152)) < 6 && yButtonTo < yButtonFrom ) {
                setTimeout ("CheckUIElements()", timeoutNextCheck);
                return;
        }


        if ( yButtonFrom != yButtonTo ) {
                yOffset = Math.ceil( Math.abs( yButtonTo - yButtonFrom ) / 10 );
                if ( yButtonTo < yButtonFrom )
                        yOffset = -yOffset;

                if ( bNetscape4plus )
                        document["divLinkButton"].top += yOffset;
                else if ( bExplorer4plus )
                        divLinkButton.style.top = parseInt (divLinkButton.style.top, 10) + yOffset;

                timeoutNextCheck = 10;
        }
        if ( yMenuFrom != yMenuTo ) {
                yOffset = Math.ceil( Math.abs( yMenuTo - yMenuFrom ) / 20 );
                if ( yMenuTo < yMenuFrom )
                        yOffset = -yOffset;

                if ( bNetscape4plus )
                        document["divMenu"].top += yOffset;
                else if ( bExplorer4plus )
                        divMenu.style.top = parseInt (divMenu.style.top, 10) + yOffset;

                timeoutNextCheck = 10;
        }

        setTimeout ("CheckUIElements()", timeoutNextCheck);
}

function start()
{
        var y;

        // we're not gonna be loaded in frames
        //if ( top.frames.length )
          //      top.location.href = self.location.href;

        // setting initial UI elements positions
        if ( bNetscape4plus ) {
                document["divMenu"].top = top.pageYOffset + 0;
                document["divMenu"].visibility = "visible";
                //document["divLinkButton"].top = top.pageYOffset + top.innerHeight - 55;
                //document["divLinkButton"].visibility = "visible";
        }
        else if ( bExplorer4plus ) {
                divMenu.style.top = document.body.scrollTop + 0;
                divMenu.style.visibility = "visible";
                //divLinkButton.style.top = document.body.scrollTop + document.body.clientHeight - 55;
                //divLinkButton.style.visibility = "visible";
        }

        // initializing UI update timer
        CheckUIElements();
        //if ( bExplorer4plus )
        //        setTimeout ( "FlashTitleStepIt(255)", 10 );
        return true;
}

function funcSwapImage(imageName, bHilite) {
// DUMB Netscape doesn't see img names if they're inside a <div which has an id
// if they're just in <div></div> - it's okay, but that's not the case :
// Workaround (using layers) was provided by Kostya. Tnx man :)
        if ( bExplorer4plus ) {
                document.images[imageName].src = "images/" + imageName + (bHilite == 1 ? "_hi.gif" : "_lo.gif");
        }
        else if ( bNetscape4plus ) {
                document.layers["divMenu"].document.images[imageName].src = "images/" + imageName + (bHilite == 1 ? "_hi.gif" : "_lo.gif");
        }
        return false;
}

</script>

<body onLoad="start();">

<div id="divMenu" style="width:182px; height:95px; position:absolute; left:0px; z-index:1;">                
<IMG src="http://www.animeclub.net/tomato/images/copyright.gif" width="182" height="95" border=0>
</div>

</body>


이게 일반 php파일이나 htm에서는 잘 동작하는데 제로보드에 header나 footer에 들어가면 onLoad 만동작을 안합니다. onmouseover,onmouseout,onmouseclick 등은 잘되는데 왜 그런지 모르겠어요
고수님들 답변좀 부탁드려요~ T_T