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<title>《网络教程》之Javascript--站内导航——03</title>
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<td width="80%" bgcolor="#C8C882" valign="middle" align="center" colspan="2" height="22"><strong><span style="font-size: 10pt; font-family: Arial">javascript导航类</span></strong></td>
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<td width="100%" bgcolor="#EBEBEB" valign="middle" align="center" height="18" colspan="3"><span style="font-size: 9pt">站内导航——03</span></td>
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<td width="67%" valign="middle" align="center" height="22"><script language="JavaScript">
var key = "";
function makeEntry ()
{
this.Name="";
this.URL = "";
this.Desc = "";
return this;
}
function makeArray(n)
{
this.length = n;
for (var k = 1; k <= n; k++)
{
this[k] = "";
}
return this;
}
function makeLinks(size)
{
this.length = size;
for (var r=1; r<= size; r++)
{
this[r] = new makeEntry();
this[r].Name = namesArray[r];
this[r].URL = urlsArray[r];
this[r].Desc = descArray[r];
}
return this;
}
var linksize=0;
namesArray = new makeArray(linksize);
urlsArray = new makeArray(linksize);
descArray = new makeArray(linksize);
var arraycount=0;
<!-- 以下是数据库部分，随意添加和删除-->
arraycount += 1
urlsArray[arraycount] = "http://www.tasoo.2000c.net"
namesArray[arraycount] = "天索星网"
descArray[arraycount] = " 娱乐 音乐 艺术 时事 新闻 书库 免费资源 主页制作技巧 搜索引擎 插件 教学 动态页面 图形图象 多媒体"
arraycount += 1
urlsArray[arraycount] = "http://tasoo.in-china. com"
namesArray[arraycount] = "tasoo starnet"
descArray[arraycount] = "java flash photoshop html javascript GIF"
linksize = arraycount;
function searchLinks(links, keyword, hits, dirw)
{
var resultcount=0;
<!-- 如下是生成查询结果显示页面!外观自己可以修改相应代码即可! -->
document.write('<HTML>');
document.write('<BODY BGCOLOR=#C0C0C0 TEXT=#FF0080 LINK=black VLINK=yellow ALINK=yellow>');
document.write('<CENTER><TABLE BORDER=3 CELLSPACING=0 CELLPADDING=3 BGCOLOR=\"#ff0000\"><TR><TD>');
document.write("<CENTER><font color=white>查寻结果 </font><font size=1 color=yellow>" +keyword +"</font></CENTER>");
document.write('</TD></TR></TABLE></CENTER></TD></TR></TABLE></CENTER><P>');
document.write('<OL>');
for (var q=1; q<=links.length; q++)
{
if (links[q].URL.toLowerCase().indexOf(dirw) != -1)
{
if (links[q].Desc.toLowerCase().indexOf(keyword) != -1)
{
resultcount += 1;
if (resultcount > hits)
{
break;
}
else
{
document.write("<LI>");
document.write("<a href=\"" + links[q].URL + "\">" + links[q].Name + "</a>");
document.write(" -" + links[q].Desc + "<br>");
continue;
}
}
if (links[q].Name.toLowerCase().indexOf(keyword) != -1)
{
resultcount += 1;
if (resultcount > hits)
{
break;
}
else
{
document.write("<LI>");
document.write("<a href=\"" + links[q].URL + "\">" + links[q].Name + "</a>");
document.write(" -" + links[q].Desc + "<br>");
continue;
}
}
}
}
}
</script>
<script>
<!-- 如下是表单合法性检查,主要是避免一些非法字符的查询! -->
function validate_form()
{
txt = document.form.search.value;
newindex = document.form.numhits.selectedIndex;
dahits = document.form.numhits[newindex].value;
newindexb = document.form.whichdir.selectedIndex;
dadir = document.form.whichdir[newindexb].value;
if (txt.indexOf(".") != -1){
alert("Search is invalid! Contains a '.'"); return;}
if (txt.indexOf(",") != -1){
alert("Search is invalid! Contains a ','"); return;}
if (txt.indexOf("@") != -1){
alert("Search is invalid! Contains a '@''"); return;}
if (txt.indexOf("!") != -1){
alert("Search is invalid! Contains a '!''"); return;}
if (txt.indexOf("#") != -1){
alert("Search is invalid! Contains a '#''"); return;}
if (txt.indexOf("$") != -1){
alert("Search is invalid! Contains a '$''"); return;}
if (txt.indexOf("%") != -1){
alert("Search is invalid! Contains a '%''"); return;}
if (txt.indexOf("^") != -1){
alert("Search is invalid! Contains a '^''"); return;}
if (txt.indexOf("&") != -1){
alert("Search is invalid! Contains a '&''"); return;}
if (txt.indexOf("*") != -1){
alert("Search is invalid! Contains a '*''"); return;}
if (txt.indexOf("(") != -1){
alert("Search is invalid! Contains a '(''"); return;}
if (txt.indexOf(")") != -1){
alert("Search is invalid! Contains a ')''"); return;}
if (txt.indexOf("[") != -1){
alert("Search is invalid! Contains a '[''"); return;}
if (txt.indexOf("]") != -1){
alert("Search is invalid! Contains a ']''"); return;}
if (txt.indexOf(";") != -1){
alert("Search is invalid! Contains a ';''"); return;}
if (txt.indexOf(":") != -1){
alert("Search is invalid! Contains a ':''"); return;}
if (txt.indexOf("<") != -1){
alert("Search is invalid! Contains a '<''"); return;}
if (txt.indexOf(">") != -1){
alert("Search is invalid! Contains a '>''"); return;}
if (txt.indexOf("?") != -1){
alert("Search is invalid! Contains a '?''"); return;}
if (txt.indexOf("=") != -1){
alert("Search is invalid! Contains a '=''"); return;}
if (txt.indexOf("+") != -1){
alert("Search is invalid! Contains a '+''"); return;}
else
{
jsi = new makeLinks(linksize);
searchLinks(jsi, txt, dahits, dadir);
document.write('</OL>');
document.write('<font color=red>....... 查询结果结束 .......</font><P>');
document.write('<hr>');
document.write('</body></html>');
}
}
</script> <form name="form">
<font color="black"><div align="center"><center><p><span style="font-size: 9pt">关键字(小写字符，支持中文)：</font>
<font color="black"><b><input name="search" size="20"> <br>
</b>返回记录数：</font> <font color="black"><select name="numhits" size="1">
<option selected value="25">25</option>
<option value="50">50</option>
<option value="75">75</option>
<option value="100">100</option>
<option value="150">150</option>
<option value="200">200</option>
</select> 检索分类 <b><select class="pt9" name="whichdir" size="1">
<option selected value="http">ALL</option>
<option value="java">javaScript</option>
<option value="inet">Internet</option>
<option value="tools">System Tools</option>
</select> <br>
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