var imgheight_left;
var dangdang_display_left;
dangdang_display_left=true;
imgheight_left=100
 function myload_left()
{
if (navigator.appName == "Netscape")
{document.dangdang_left.pageY=imgheight;
document.dangdang_left.pageX=10;
mymove_left();
}
else
{
dangdang_left.style.top=imgheight_left;
dangdang_left.style.left=10;
mymove_left();
}
}
 function mymove_left()
 {
	if(dangdang_display_left)
	{
 		if(document.ns)
		 {
		 document.dangdang_left.top=pageYOffset+142;
		 document.dangdang_left.left=pageXOffset+0;
		 setTimeout("mymove_left();",50)
		 }
		 else
		 {
		 dangdang_left.style.top=document.body.scrollTop+142;
		 dangdang_left.style.left=document.body.scrollLeft+0;
		 setTimeout("mymove_left();",50)
		 }
	}
 }

function hide_ad_left()
{
	dangdang_display_left=false;
	document.all("dangdang_left").style.display = 'none';
}

if (navigator.appName == "Netscape")
{document.write("<layer id='dangdang_left' top=0 width=0 ><a target='_blank' href='images/03.jpg'><img src='images/net.gif'  border=0></a></layer>");
myload_left();}
else
{
document.write("<div id='dangdang_left'  style='position: absolute;width:0;top:0;left:0;visibility: visible;z-index: 2'><img src='images/closefloat.gif'  style='LEFT:88px;CURSOR: hand;POSITION: absolute;TOP: 280px' alt='关闭' onclick='javascript:hide_ad_left()'><a target='_blank' href='images/03.jpg'><img src='images/net.gif'   border=0></a></div>");
myload_left();
}