[转]JS页面内查找

<script language="JavaScript">

var NS4 = (document.layers); // Which browser?

var IE4 = (document.all);

var win = window; // window to search.

var n = 0;

function findInPage(str) {

var txt, i, found;

if (str == "")

return false;

if (NS4) {

if (!win.find(str))

while(win.find(str, false, true))

n++;

else

n++;

if (n == 0)

alert("Not found.");

}

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);

}

}

}

return false;

}

</script>