function addLoadEvent(func){var oldonload=window.onload;if(typeof window.onload!='function'){window.onload=func;}
else{window.onload=function(){if(oldonload){oldonload();}
func();}}}
function getDocHeight()
{var D=document;return Math.max(Math.max(D.body.scrollHeight,D.documentElement.scrollHeight),Math.max(D.body.offsetHeight,D.documentElement.offsetHeight),Math.max(D.body.clientHeight,D.documentElement.clientHeight));}