静态页面内容搜索

静态页面内容搜索

<script language="JavaScript">
<!--

var DOM = (document.getElementById) ? 1 : 0;
var NS4 = (document.layers) ? 1 : 0;
var IE4 = 0;
if (document.all)
{
IE4 = 1;
DOM = 0;
}

var win = window;
var n = 0;

function findIt() {
if (document.getElementById("searchstr").value != "")
findInPage(document.getElementById("searchstr").value);
}

function findInPage(str) {
var txt, i, found;

if (str == "")
return false;

if (DOM)
{
win.find(str, false, true);
return true;
}

if (NS4) {
if (!win.find(str))
while(win.find(str, false, true))
n++;
else
n++;

if (n == 0)
alert("未找到指定内容.");
}

if (IE4) {
txt = win.document.body.createTextRange();

for (i = 0; i <= n && (found = txt.findText(str)) != false; i++) {
txt.moveStart("character", 1);
txt.moveEnd("textedit");
}

if (found) {
txt.moveStart("character", -1);
txt.findText(str);
txt.select();
txt.scrollIntoView();
n++;
}
else {
if (n > 0) {
n = 0;
findInPage(str);
}
else
alert("未找到指定内容.");
}
}

return false;
}
// -->
</script>

<input type="text" id="searchstr" name="searchstr" class="textbox" size="10">
<input type="button" value="页内查找" onclick="javascript:findIt();" class="sbttn">