/* - backToTop.js - */
// http://www.lukimat.fi/portal_javascripts/backToTop.js?original=1
<!--back to top-->
function configBack2Top(){var d=document;var viewport_height=(self.innerHeight)?self.innerHeight:(d.documentElement&&d.documentElement.clientHeight)?d.documentElement.clientHeight:(d.body)?d.body.clientHeight:0;var bd=d.getElementsByTagName('body')[0];var page_height=bd.offsetHeight;var ttl=d.getElementById('backToTop');if(page_height<viewport_height){ttl.style.visibility='hidden'} else{var iebody=(d.compatMode&&d.compatMode!="BackCompat")?d.documentElement:d.body;var dsoctop=d.all?iebody.scrollTop:pageYOffset;var pct=d.getElementById('portal-column-content');if(dsoctop>0){var left=pct.offsetWidth;while(pct!=null){left+=pct.offsetLeft;pct=pct.offsetParent}
ttl.style.right=(d.documentElement.offsetWidth-left+(d.all?iebody.scrollLeft:pageXOffset)+1)+"px";var pf=d.getElementById('portal-footer');var top=0;while(pf!=null){top+=pf.offsetTop;pf=pf.offsetParent}
var delta=top-dsoctop;if(delta<viewport_height){ttl.style.bottom=(viewport_height-delta)+"px"} else{ttl.style.bottom="5px"}
ttl.style.visibility='visible'} else{ttl.style.visibility='hidden'}}}
if(navigator.userAgent.toLowerCase().indexOf('konqueror')==-1){window.onload=window.onresize=window.onscroll=document.documentElement.onscroll=configBack2Top}