function backToTop(){var x1=x2=x3=0;var y1=y2=y3=0;if(document.documentElement){x1=document.documentElement.scrollLeft||0;y1=document.documentElement.scrollTop||0;}
if(document.body){x2=document.body.scrollLeft||0;y2=document.body.scrollTop||0;}
x3=window.scrollX||0;y3=window.scrollY||0;var x=Math.max(x1,Math.max(x2,x3));var y=Math.max(y1,Math.max(y2,y3));window.scrollTo(Math.floor(x/2),Math.floor(y/2));if(x>0||y>0){window.setTimeout("backToTop()",25);}}
