function isUndefined(a){return typeof(a)=="undefined";} function isFunction(a){return typeof(a)=="function";} function isString(a){return typeof(a)=="string";}
function registerEvent(el,evtype,fc,capt){if(el==window && evtype=="domready"){if(isUndefined(window._onbuilt))window._onbuilt=[];if(window._dombuilt){fc();return;}window._onbuilt.push(fc);if(!isFunction(window._built))window._built=function(){if(window._dombuilt)return;for(var i=0;i<window._onbuilt.length;i++)window._onbuilt[i]();window._dombuilt=true;};if(browser.isIE && document.readyState){if(!getEl("ie_ready")){var src=(window.location.protocol=="https:")?"://0":"javascript:void(0)";document.write('<scr'+'ipt id="ie_ready" defer src="'+src+'"><\/script>');getEl("ie_ready").onreadystatechange=function(){if(this.readyState=="complete")window._built();};}}else{if(browser.isMozilla)document.addEventListener("DOMContentLoaded",window._built,0); else window.addEventListener("load",window._built,0);}return true;}function _registerEvent(el,evtype,fc,capt){if(el.addEventListener){el.addEventListener(evtype,fc,capt);return true;}else if(el.attachEvent){var f=el.attachEvent("on"+evtype,function(){fc.apply(el,arguments)});return f;}return false;}if(isString(el))_registerEvent(getEl(el),evtype,fc,capt);else if(ell=el.length){for(var i=0;i<ell;i++)_registerEvent(el[i],evtype,fc,capt);}else _registerEvent(el,evtype,fc,capt);}
function unregisterEvent(el,evtype,fc,capt){if(el==window && evtype=="domready"){for(var i=0;i<window._onbuilt.length;i++){if(window._onbuilt[i]===fc)window_onbuilt.splice(i,1);}return true;}function _unregisterEvent(el,evtype,fc,capt){if(el.removeEventListener){el.removeEventListener(evtype,fc,capt);return true;}else if(el.detachEvent){var f=el.detachEvent("on"+evtype,function(){fc.apply(el,arguments)});return f;}return false;}if(isString(el))_unregisterEvent(getEl(el),evtype,fc,capt);else if(ell=el.length){for(var i=0;i<ell;i++)_unregisterEvent(el[i],evtype,fc,capt);}else _unregisterEvent(el,evtype,fc,capt);}
function getEvent(e){if(isUndefined(e))e=window.event;if(isUndefined(e.target))e.target=e.srcElement;if(isUndefined(e.layerX))e.layerX=e.offsetX;if(isUndefined(e.layerY))e.layerY=e.offsetY;if(isUndefined(e.which) && e.keyCode)e.which=e.keyCode;if(!e.preventDefault)e.preventDefault=function(){e.returnValue=false;};return e;}
function findPosX(el){if(typeof(el)=="string")el=document.getElementById(el);var curleft=0;if(el.offsetParent){while(el.offsetParent){curleft+=el.offsetLeft;el=el.offsetParent;}}else if(el.x)curleft+=el.x;return parseInt(curleft);}
var browser={isIE:!!(window.attachEvent && !window.opera),isOpera:!!window.opera,isMozilla:(navigator.product=="Gecko" && navigator.userAgent.indexOf("KHTML")==-1),getIEversion:function(){if(!browser.isIE)return 0;else{var ver=navigator.appVersion;ver=ver.substring(ver.indexOf("MSIE")+4);return ver.substring(0,ver.indexOf(";"));}},toString:function(){return listProperties(navigator);}};

var shiftBackground=function(){
  var doyle=document.getElementsByTagName("body");
  doyle[0].style.backgroundPosition=(findPosX("global")%11)-1+"px 0";
};

registerEvent(window,"load",shiftBackground);
registerEvent(window,"resize",shiftBackground);