function updateHeader() { var amount; if(window.pageYOffset) amount = window.pageYOffset; else if(document.body.scrollTop) amount = document.body.scrollTop; else amount = document.documentElement.scrollTop; var el1 = document.getElementById('imageHeader'); var el2 = document.getElementById('topNavigation'); el1.style.top = amount + "px"; el2.style.top = amount - 5 + "px";}
function swap(o){s = new String(o.src); if( s.indexOf("-") != -1 ){ o.src = s.replace(/-/, "_"); dCookie('float'); o.title = 'Enable Floating Navigation Mode'; var el1 = document.getElementById('imageHeader'); var el2 = document.getElementById('topNavigation'); el1.style.top = "0px"; el2.style.top = el1.style.height - 5 + "px"; }else {o.src = s.replace(/_/, "-"); cCookie('float','on',0); o.title = 'Disable Floating Navigation Mode';}}
function cCookie(n,v,d){if (d) {var date = new Date(); date.setTime(date.getTime()+(d*24*60*60*1000)); var expires = "; expires="+date.toGMTString();}else var expires = ""; document.cookie = n+"="+v+expires+"; path=/";}
function rCookie(n) {var nameEQ = n + "=";var ca = document.cookie.split(';');for(var i=0;i < ca.length;i++) {var c = ca[i];while (c.charAt(0)==' ') c = c.substring(1,c.length);if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);}return null;}
function dCookie(n) {cCookie(n,"",-1);}
function scroller() {if(rCookie('float') == 'on')setTimeout('updateHeader()', '215');}