var contentBoxId="actual-text";

function init(){
	contentIframe=window.parent.frames['content-frame'];
	contentBox=contentIframe.document.getElementById(contentBoxId);
	if(contentBox) {
		contentBoxHeight = (contentBox.offsetHeight > contentBox.scrollHeight) ? contentBox.offsetHeight : contentBox.scrollHeight + 30;

		//hide scroll arrows if not needed
		if (contentBoxHeight < 360){
			contentIframe.parent.document.getElementById("scroll_up").style.visibility="hidden";
			contentIframe.parent.document.getElementById("scroll_down").style.visibility="hidden";
		} else{
			contentIframe.parent.document.getElementById("scroll_up").style.visibility="visible";
			contentIframe.parent.document.getElementById("scroll_down").style.visibility="visible";
		}
	}
}