<script language="JavaScript">/*
Find In Page Script-
By Mike Hall ([email protected])
Permission granted to Dynamicdrive.com to feature script in archive
For full source code, visit http://dynamicdrive.com
*/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; // Find next occurance of the given string on the page, wrap around to the
// start of the page if necessary. if (NS4) { // Look for match starting at the current point. If not found, rewind
// back to the first match. if (!win.find(str))
while(win.find(str, false, true))
n++;
else
n++; // If not found in either direction, give message. if (n == 0)
alert("Not found.");
} if (IE4) {
txt = win.document.body.createTextRange(); // Find the nth match from the top of the page. for (i = 0; i <= n && (found = txt.findText(str)) != false; i++) {
txt.moveStart("character", 1);
txt.moveEnd("textedit");
} // If found, it and scroll it into view. if (found) {
txt.moveStart("character", -1);
txt.findText(str);
txt.select();
txt.scrollIntoView();
n++;
} // Otherwise, start over at the top of the page and find first match. else {
if (n > 0) {
n = 0;
findInPage(str);
} // Not found anywhere, give message. else
alert("Not found.");
}
} return false;
}</script><form name="search" onSubmit="return findInPage(this.string.value);">
<font size=3><input name="string" type="text" size=15 onChange="n = 0;"></font>
<input type="submit" value="Find">
</form>^ 匹配一个输入或一行的开头,/^a/匹配"an A",而不匹配"An a"
Find In Page Script-
By Mike Hall ([email protected])
Permission granted to Dynamicdrive.com to feature script in archive
For full source code, visit http://dynamicdrive.com
*/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; // Find next occurance of the given string on the page, wrap around to the
// start of the page if necessary. if (NS4) { // Look for match starting at the current point. If not found, rewind
// back to the first match. if (!win.find(str))
while(win.find(str, false, true))
n++;
else
n++; // If not found in either direction, give message. if (n == 0)
alert("Not found.");
} if (IE4) {
txt = win.document.body.createTextRange(); // Find the nth match from the top of the page. for (i = 0; i <= n && (found = txt.findText(str)) != false; i++) {
txt.moveStart("character", 1);
txt.moveEnd("textedit");
} // If found, it and scroll it into view. if (found) {
txt.moveStart("character", -1);
txt.findText(str);
txt.select();
txt.scrollIntoView();
n++;
} // Otherwise, start over at the top of the page and find first match. else {
if (n > 0) {
n = 0;
findInPage(str);
} // Not found anywhere, give message. else
alert("Not found.");
}
} return false;
}</script><form name="search" onSubmit="return findInPage(this.string.value);">
<font size=3><input name="string" type="text" size=15 onChange="n = 0;"></font>
<input type="submit" value="Find">
</form>^ 匹配一个输入或一行的开头,/^a/匹配"an A",而不匹配"An a"
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