Custom Scrollbar Options

[sikdragon]

I seem to have stumped all the xanga help people that are on at 5:30 once again in my 3 days.

Ok i tried to put a custom scroll on my boxed xanga which is a div and lets say the div's id is xanga226892, what the hell did i do wrong? this thing took me forever. this code was all in the custom header. the pic links are bad i know but it shouldnt effect the whole thing. when i hover over the buttons it says "object expected". As far as i can tell all the objects are in place.

CODE

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<script type="javascript">
var scrollPeriod = 100;
var scrolling = false;

function getStyleById(id, property) {
 var element = document.getElementById(id);
 var style =;

 if ((style != "") && (style != null)) {
   return style;
 }

 if (element.currentStyle) {
   style =;
   if ((style != "") && (style != null)) {
     return style;
   }
 }

 return null;
}

function setStyleById(id, property, value) {
 var element = document.getElementById(id);
 element.style[property] = value;
}

// FIXME: this should be moved to a utility library
function getElementHeight(element) {
 var height = null;
 if (document.defaultView && document.defaultView.getComputedStyle) {
   var computedStyle = document.defaultView.getComputedStyle(element, "");
   height = computedStyle.getPropertyValue("height");
 }
 if ((height == null) || (height.length < 1)) {
   height = element.offsetHeight;
 }
 return parseInt(height);
}

function scroll(containerId, contentId, direction, amount) {
 var containerDiv = document.getElementById(containerId);
 var contentDiv = document.getElementById(contentId);
 var topOffset = parseInt(getStyleById(contentId, 'top'));
 if (isNaN(topOffset)) {
   topOffset = 0;
 }
 var containerHeight = getElementHeight(containerDiv);  
 var contentHeight = getElementHeight(contentDiv);
 var newOffset;
 if (direction == 'top') {
   newOffset = 0;
 }
 else if (direction == 'bottom') {
   newOffset = containerHeight - contentHeight;
 }
 else if (direction == 'up') {
   newOffset = topOffset + amount;
 }
 else if (direction == 'down') {
   newOffset = topOffset - amount;
 }
 else if (direction == 'to') {
   newOffset = 0 - amount;
 }
 if (newOffset > 0) {
   newOffset = 0;
 }
 if ((containerHeight - newOffset) > contentHeight) {
   newOffset = containerHeight - contentHeight;
 }

 contentDiv.style['top'] = newOffset;

 return true;
}

function scrollUp(containerId, contentId) {
 return scroll(containerId, contentId, 'up');
}
function scrollDown(containerId, contentId) {
 return scroll(containerId, contentId, 'down');
}
function scrollToTop(containerId, contentId) {
 return scroll(containerId, contentId, 'top');
}
function scrollToBottom(containerId, contentId) {
 return scroll(containerId, contentId, 'bottom');
}

function scrollContinuous(containerId, contentId, direction, amount) {
 if (scrolling) {
   scroll(containerId, contentId, direction, amount);
   window.setTimeout("scrollContinuous('" + containerId + "', '" + contentId
                     + "', '" + direction + "', " + amount + ");", scrollPeriod);
 }
}

function scrollStart(containerId, contentId, direction, amount) {
 scrolling = true;
 scrollContinuous(containerId, contentId, direction, amount);
}

function scrollStop() {
 scrolling = false;
}

function scrollSetup(containerId, contentId, controlsId) {
 var container = document.getElementById(containerId);
 var content = document.getElementById(contentId);
 var controls = document.getElementById(controlsId);
 var containerHeight = getElementHeight(container);  
 var contentHeight = getElementHeight(content);

 if (contentHeight <= containerHeight) {
   controls.style['visibility'] = 'hidden';
 }
}
</script>


<script language="javascript">
function onBodyLoad() {
self.focus();
scrollSetup('xanga226892', 'none');
scrollSetup('xanga226892', 'none');
}
</script>


<div id="none" style="position:absolute;">
<a href="#" onmouseover="scrollStart('xanga226892', 'up', 10); return false;" onmouseout="scrollStop(); return false;"><img src="/sitewide/assets/img/buttons/up.gif" onclick="return false;" alt="" border="0"></a> <a href="#" onmouseover="scrollStart('xanga226892', 'down', 10); return false;" onmouseout="scrollStop(); return false;" onmouseout="scrollStop();" onclick="return false;"><img src="/sitewide/assets/img/buttons/down.gif" alt="" border="0"></a>
</div>


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