document.writeln('<div id="codefans_net" style="position:absolute">');
//<!--t�ӵ�ַ-->
document.writeln('<a href="http://job.aweb.com.cn/dbnwebjob/other/rc.jsp" target="_blank">');
//<!--ͼƬ��ַ-->
document.writeln('<img src="http://ad1.aweb.com.cn:80/UserFiles/img/20091204142415813.gif" border="0">');
document.writeln('</a>');
document.writeln('</div>'); 



var x = 50,y = 60; 
var xin = true, yin = true; 
var step = 1; 
var delay = 10; 
var obj=document.getElementById("codefans_net"); 
function float() { 
var L=T=0;
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("float()", delay); 
obj.onmouseover=function(){clearInterval(itl)} ;
obj.onmouseout=function(){itl=setInterval("float()", delay)};