好库网
document.writeln("<style type=\"text\/css\">");
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document.writeln(".window {");
document.writeln("	width:290px;");
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document.writeln("	bottom:30px;");
document.writeln("	left:50%;");
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document.writeln("	margin:-50px auto 0 -145px;");
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document.writeln("	background-image:         linear-gradient(#585858, #565656);");
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document.writeln("	\/*min-height:100px;*\/");
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document.writeln(".window .txtbtn {");
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document.writeln("	background-image: -webkit-gradient(linear, left top, left bottom, from( #DCDCDC ), to( #f1f1f1 )); \/* Saf4+, Chrome *\/");
document.writeln("	background-image: -webkit-linear-gradient( #ffffff , #DCDCDC ); \/* Chrome 10+, Saf5.1+ *\/");
document.writeln("	background-image:    -moz-linear-gradient( #ffffff , #DCDCDC ); \/* FF3.6 *\/");
document.writeln("	background-image:     -ms-linear-gradient( #ffffff , #DCDCDC ); \/* IE10 *\/");
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document.writeln("	background-image:         linear-gradient( #ffffff , #DCDCDC );");
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document.writeln("	font-weight: bold;");
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document.writeln("	padding:6px;");
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document.writeln(".window .txtbtn:visited {");
document.writeln("	background-image: -webkit-gradient(linear, left top, left bottom, from( #ffffff ), to( #cccccc )); \/* Saf4+, Chrome *\/");
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document.writeln("	background-image:     -ms-linear-gradient( #ffffff , #cccccc ); \/* IE10 *\/");
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document.writeln("	background-image:         linear-gradient( #ffffff , #cccccc );");
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document.writeln(".window .txtbtn:hover {");
document.writeln("	background-image: -webkit-gradient(linear, left top, left bottom, from( #ffffff ), to( #cccccc )); \/* Saf4+, Chrome *\/");
document.writeln("	background-image: -webkit-linear-gradient( #ffffff , #cccccc ); \/* Chrome 10+, Saf5.1+ *\/");
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document.writeln(".window .txtbtn:active {");
document.writeln("	background-image: -webkit-gradient(linear, left top, left bottom, from( #cccccc ), to( #ffffff )); \/* Saf4+, Chrome *\/");
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document.writeln("	background-image:    -moz-linear-gradient( #cccccc , #ffffff ); \/* FF3.6 *\/");
document.writeln("	background-image:     -ms-linear-gradient( #cccccc , #ffffff ); \/* IE10 *\/");
document.writeln("	background-image:      -o-linear-gradient( #cccccc , #ffffff ); \/* Opera 11.10+ *\/");
document.writeln("	background-image:         linear-gradient( #cccccc , #ffffff );");
document.writeln("	border: 1px solid #C9C9C9;");
document.writeln("	border-top: 1px solid #B4B4B4;");
document.writeln("	box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3) inset;");
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document.writeln("");
document.writeln(".window .title .close {");
document.writeln("	float:right;");
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document.writeln("	width:26px;");
document.writeln("	height:26px;");
document.writeln("	display:block;	");
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document.writeln("<\/style>");
document.writeln("<div class=\"window\" id=\"windowcenter\">");
document.writeln("	<div id=\"title\" class=\"title\">消息提醒<span class=\"close\" id=\"alertclose\"><\/span><\/div>");
document.writeln("	<div class=\"content\">");
document.writeln("	 <div id=\"txt\"><\/div>");
document.writeln("	 <input type=\"button\" value=\"确定\" id=\"windowclosebutton\" name=\"确定\" class=\"txtbtn\">	");
document.writeln("	<\/div>");
document.writeln("<\/div>");
$(document).ready(function () { 

$("#windowclosebutton").click(function () { 
$("#windowcenter").slideUp(500);
}); 
$("#alertclose").click(function () { 
$("#windowcenter").slideUp(500);
}); 

}); 
function alert(title){ 
//var windowHeight; 
//var windowWidth; 
//var popWidth;  
//var popHeight; 
//windowHeight=$(window).height(); 
//windowWidth=$(window).width(); 
//popHeight=$(".window").height(); 
//popWidth=$(".window").width(); 
//var popY=(windowHeight-popHeight)/2; 
//var popX=(windowWidth-popWidth)/2; 
//$("#windowcenter").css("top",popY).css("left",popX).slideToggle("slow"); 
$("#windowcenter").slideToggle("slow"); 
$("#txt").html(title);
//$("#windowcenter").hide("slow"); 
setTimeout('$("#windowcenter").slideUp(500)',8000);
}