var x = 50,y = 60
var xin = true, yin = true
var step = 1
var delay = 20
var obj=document.getelementbyid("www_qpsh_com")
function floatwww_qpsh_com() {
var l=t=0
//by www.qpsh.com
var r= document.body.clientwidth-obj.offsetwidth
var b = document.body.clientheight-obj.offsetheight
obj.style.left = x + document.body.scrollleft
obj.style.top = y + document.body.scrolltop
x = x + step*(xin?1:-1)
if (x < l) { xin = true; x = l}
if (x > r){ xin = false; x = r}
y = y + step*(yin?1:-1)
if (y < t) { yin = true; y = t }
if (y > b) { yin = false; y = b }
}
var itl= setinterval(floatwww_qpsh_com, delay)
obj.onmouseover=function(){clearinterval(itl)}
obj.onmouseout=function(){itl=setinterval(floatwww_qpsh_com, delay)}
function closediv(div) {
             document.getelementbyid(div).style.display = 'none';
         };