<!--
function pre_check(){var myWidth=0,myHeight=0;if(typeof(window.innerWidth)=='number'){myWidth=window.innerWidth;myHeight=window.innerHeight;}else if(document.documentElement&&
(document.documentElement.clientWidth||document.documentElement.clientHeight)){myWidth=document.documentElement.clientWidth;myHeight=document.documentElement.clientHeight;}else if(document.body&&(document.body.clientWidth||document.body.clientHeight)){myWidth=document.body.clientWidth;myHeight=document.body.clientHeight;}
var Width=parseInt(document.getElementById("Movable").style.width);var Height=parseInt(document.getElementById("Movable").style.height);var containers_Y=parseInt(document.getElementById("Canvas").style.top);var posX=(myWidth-Width)/2;var posY=(((myHeight-Height)-containers_Y)/2);if(posY <=0)posY=0;document.getElementById("Canvas").style.height=myHeight-containers_Y+"px";document.getElementById("Movable").style.left=posX+"px";document.getElementById("Movable").style.top=posY+"px";document.getElementById("Movable").style.visibility="visible"
onresize=chk;}
function chk(){pre_check();}