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function buffer(a,b,c){var d;return function(){if(d)return;d=settimeout(function(){a.call(this),d=undefined},b)}}(function(){function e(){var d=document.body.scrolltop||document.documentelement.scrolltop;d>b?(a.classname="div1 div2",c&&(a.style.top=d-b+"px")):a.classname="div1"}var a=document.getelementbyid("float");if(a==undefined)return!1;var b=0,c,d=a;while(d)b+=d.offsettop,d=d.offsetparent;c=window.activexobject&&!window.xmlhttprequest;if(!c||!0)window.onscroll=buffer(e,150,this)})();

function hidead()
{
$(".div2").hide();
}

function hidead2()
{
$(".div5").hide();
}

function randomfrom(lowervalue,uppervalue)
{
  return math.floor(math.random() * (uppervalue - lowervalue + 1) + lowervalue);
}