function menuMouseOver(currentName) {
	changeClass(currentName,"menuMouseOver");
}
function menuMouseOut(currentName){
	changeClass(currentName,"menuMouseOut");
}
function set_image(button, img) {
	button.src = img;
}
function changeInnerImage(currentComponent, currentImageSource) {
	currentComponent.src=currentImageSource;
}
function changeClass(currentName, currentClass) {
	currentName.className=currentClass;
}
var scrollspeed=cache=2;
function getElementFactory(currentName){
	var currentElement = null;
	if (document.getElementById) {
		currentElement=eval('document.getElementById("'+currentName+'")');
	}else{
		if (document.layers) {
			currentElement=eval('document.layers["'+currentName+'"]');
		}else{
			if ((document.all)&&(!document.getElementById)) {
				currentElement=eval('document.all.'+currentName);
			}
		}
	}
	return currentElement;
}
function getElementFactoryStyle(currentName){
	var currentElement = null;
	if (document.getElementById) {
		currentElement=eval('document.getElementById("'+currentName+'").style');
	}else{
		if (document.layers) {
			currentElement=eval('document.layers["'+currentName+'"]');
		}else{
			if ((document.all)&&(!document.getElementById)) {
				currentElement=eval('document.all.'+currentName+'.style');
			}
		}
	}
	return currentElement;
}
function showElement (currentName){
	var currentElement = getElementFactoryStyle(currentName);
	if ( currentElement != null && ! isShow(currentName) ){
		currentElement.visibility="visible";
	}
}
function hideElement (currentName){
	var currentElement = getElementFactoryStyle(currentName);
	if ( currentElement != null &&  isShow(currentName) ){
		currentElement.visibility="hidden";
	}
}
function isShow(currentName){
	var currentElement = getElementFactoryStyle(currentName);
	if ( currentElement != null && currentElement.visibility == "visible"){
		return true;
	}
	return false;
}
var scrollerLength=0;
var newsObjectStyle=null;
function initialiseScroller(currentContentName) {
	var newsObject=getElementFactory(currentContentName);
	newsObjectStyle=getElementFactoryStyle(currentContentName);
	newsObjectStyle.top=0;
	scrollerLength=newsObject.offsetHeight;
	verticalScroller();
}
function verticalScroller(){
	var currentTop=parseInt(newsObjectStyle.top);
	var currentPosition=currentTop-scrollspeed;
	if (currentTop<scrollerLength*(-1)) {
		currentPosition=20;
	}
	newsObjectStyle.top=currentPosition;
	setTimeout("verticalScroller()",100);
}