function login_layer(url){

document.write("<style type='text/css' rel='StyleSheet'>")

document.write("a#lgn{")
document.write("display:none;")
document.write("}")

document.write("div#login_layer{")
document.write("position:absolute;")
document.write("display:none;")
document.write("z-index:1001;")
document.write("left:0px;")
document.write("top:0px;")
document.write("width:380px;")
document.write("height:260px;")
document.write("color: rgb(102, 102, 102);")
document.write("font-size:12px;")
document.write("font-family:Arial,Helvetica,sans-serif;")
document.write("}")

document.write("div#login_layer a{")
document.write("color: rgb(102, 153, 102);")
document.write("text-decoration: none;")
document.write("font-size:12px;")
document.write("}")

document.write("div#login_layer a:hover{")
document.write("color:#fff;")
document.write("background: rgb(102, 153, 102);")
document.write("text-decoration:none;")
document.write("}")

document.write("div#out_login{")
document.write("position:relative;")
document.write("background:#bbb;")
document.write("margin:10px auto;")

document.write("width:350px;")
document.write("height:240px;")

document.write("}")

document.write("form#in_login{")
document.write("position:relative;")
document.write("background:#fefefe;")
document.write("border:1px solid #555;")
document.write("margin:0px;")
document.write("padding:0px;")
document.write("top:-4px;")
document.write("left:-4px;")
document.write("width:350px;")
document.write("height:238px;")
document.write("}")

document.write("table#login_table{")
document.write("margin:50px auto 0 auto;")
document.write("border:0px;")
document.write("width:280px;")
document.write("}")

document.write("table#login_table td{")
document.write("text-align:left;")
document.write("height:35px;")
document.write("}")

document.write("input#usr,input#pwd{width:140px;height:22px;line-height:22px;border:solid 1px #7f9db9;margin:0px;padding:0px;}")

document.write("input#sbmt{margin-left:10px;}")
document.write("input#hide{margin-left:35px;}")

document.write("</style>")






document.write("<a href='javascript:showlogin()' id='lgn_layer'>登录</a>")

document.write("<div id='login_layer'>")
document.write("<div id='out_login'>")
document.write("<form method='post' action='http://www.auly.com/login/index_act.asp?url="+url+"' name='in_login' id='in_login'>")
document.write("<table id='login_table' align='center'>")
document.write("<tr>")
document.write("<td width='50'><label for='usr'>用户名:</label></td>")
document.write("<td align=left><input name='usr' id='usr' type='text'/>&nbsp;&nbsp;&nbsp;<a href='http://www.auly.com/reg/?url="+url+"'>注&nbsp;&nbsp;&nbsp;册</a></td>")
document.write("</tr>")

document.write("<tr>")
document.write("<td>密　码:</td>")
document.write("<td align=left><input name='pwd' id='pwd' type='password'/></td>")
document.write("</tr>")
document.write("<tr>")

document.write("<tr>")
document.write("<td></td>")
document.write("<td align=left><input name='loginflag' id='loginflag' type='checkbox' checked='checked'/>&nbsp;&nbsp;保存登录信息，下次自动登录</td>")
document.write("</tr>")
document.write("<tr>")


document.write("<td height='50'></td>")
document.write("<td align='left'>")
document.write("<input type='submit' value='登录' id='sbmt'/>")
document.write("<input type='button' onclick='javascript:hideLogin();' value='取消' id='hide'/></td>")
document.write("</td>")
document.write("</tr>")
document.write("</table>")
document.write("</form>")
document.write("</div>")
document.write("</div>")
}



function oo(obj){
  return typeof(obj)=="string"?document.getElementById(obj):obj
}



function showlogin(){
   var lay2=oo("login_layer");
   lay2.style.left=((document.body.offsetWidth-380)/2)+"px";
//   lay2.style.top=(window.screen.availHeight/2-240)+"px";
   lay2.style.display='block';
   oo("usr").focus();
}



function hideLogin(){
   var lay2=oo("login_layer");
   if(lay2.style.display="block"){
       lay2.style.display="none";
   }
}



function scall(){
	var top_height = document.documentElement.scrollTop
	var login_layer = document.getElementById("login_layer")

	if  (login_layer != '')
	{
		login_layer.style.top=(top_height+100)+"px";
	}
}


window.onload = scall;

window.onscroll = scall;

window.onresize = scall;





/////////////////////////////////由于和其他代码出现冲突导致报错，用以屏蔽报错信息

<!--
/*屏蔽所有的js错误*/
function killerrors() { 
return true; 
} 
window.onerror = killerrors; 
-->