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📄 picture13.htm

📁 javascript各种效果的实例及源代码
💻 HTM
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<html>
<head>
<title>图片定期消失</title>
<style type="text/css">
<!--
.nine{  font-family: "宋体"; font-size: 9pt; }
body {  font-family: "宋体"; font-size: 9pt; margin-top: 0px; margin-left: 4px; margin-right: 0px}
A { COLOR: black; FONT-SIZE: 9pt; FONT-WEIGHT: 400; TEXT-DECORATION: none }
 A:hover { COLOR: red; FONT-SIZE: 9pt; FONT-WEIGHT: 400; TEXT-DECORATION: underline }
a:active     { font: 9pt "宋体"; cursor: hand; color: #FF0033 }
--></style>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<script LANGUAGE="JavaScript">
<!--
function isnew(maxdays, addDate){

    var oldDate = new Date(addDate);
    var newDate = new Date();
    var maxdaysold = maxdays*24*60*60*1000;
    var psj=0;
    
    if ((newDate.getTime()-oldDate.getTime()) <= maxdaysold) {
        document.write("<img src=picture1.jpg width=400 height=40 ALIGN=MIDDLE Alt='New'>");
    }

}
//-->
</script>
</head>
<body bgcolor="#fef4d9">
<br>
<br>
<center><font color=red face="隶书" size=6>图片定期消失</font></center>
<br>
<center>
<table border=5 bordercolor=blue borderlight=green>
<tr><td align=center><font size=5 color=red face="Arial, Helvetica, sans-serif"><strong>下面为脚本显示区</strong></font></td></tr>
<tr><td align=center width=440 height=80><script LANGUAGE="JavaScript">
<!--
isnew(20,"06/08/2000")
//-->
</script>
        <br>
        <b class="nine">此图片在6月9日后的20天内存在,其它时间不显示图片!</b> </td>
    </tr></table></center>
<br>
<br>
<center>
<textarea name=source rows=12 cols=55 class=yk9>
脚本说明:
第一步:把如下代码加入<head>区域中
<script LANGUAGE="JavaScript">
<!--
function isnew(maxdays, addDate){

    var oldDate = new Date(addDate);
    var newDate = new Date();
    var maxdaysold = maxdays*24*60*60*1000;
    var psj=0;
    
    if ((newDate.getTime()-oldDate.getTime()) <= maxdaysold) {
        document.write("<img src=pic.jpg width=400 height=40 ALIGN=MIDDLE Alt='New'>");
    }

}
//-->
</script>
<script LANGUAGE="JavaScript">
<!--
isnew(7,"05/14/2000")
//-->
</script>
</textarea>
<SCRIPT LANGUAGE="JavaScript">

<!-- hide

function goHist(a) 

{

   history.go(a);

}

//-->

</script>

<FORM METHOD="post">
<INPUT TYPE="button" VALUE="返回" onClick="goHist(-1)" style="background-color: #8000FF; color: rgb(255,255,255)">
</form>
</center>
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</body>
</html>

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