Funzione segnalibro

[gachio]

ciao
sarebbe possibile ricercare una parola all' interno di una pagina (come avviene per esempio con la funzione segnalibro) digitando la stessa in un'area text e premendo invio al posto di effettuare il classico collegamento ipertestuale?

Grazie anticipatamente

[Federix]

Con un linguaggio server, e con il testo dinamico lo puoi fare tranquillamente, con HTML semplice no. Forse puoi fare qualcosa con JS, ma non ne sono sicuro.

[gachio]

Ho trovato questo, ma la parola in questione viene evidenziata e posta al di sotto della pagina e non in alto a sx
potreste aiutarmi con questo codice almeno?

<script>
<!-- Hide from old browsers
// Prelevato e descritto su http://web-link.it
/*
Find In Page Script -- Submitted/revised by Alan Koontz (alankoontz@REMOVETHISyahoo.com)
Permission granted to Dynamicdrive.com to feature script in archive.
For full source code, visit http://www.dynamicdrive.com/
*/

// revised by Alan Koontz -- 9/18/02

var TRange = null;
var win = null;
var frameval = false;

// SELECTED BROWSER SNIFFER COMPONENTS DOCUMENTED AT
// http://www.mozilla.org/docs/web-deve...wser_type.html

var nom = navigator.appName.toLowerCase();
var agt = navigator.userAgent.toLowerCase();
var is_major = parseInt(navigator.appVersion);
var is_minor = parseFloat(navigator.appVersion);
var is_ie = (agt.indexOf("msie") != -1);
var is_ie4up = (is_ie && (is_major >= 4));
var is_nav = (nom.indexOf('netscape')!=-1);
var is_nav4 = (is_nav && (is_major == 4));
var is_mac = (agt.indexOf("mac")!=-1);
var is_gecko = (agt.indexOf('gecko') != -1);

// GECKO REVISION

var is_rev=0
if (is_gecko) {
temp = agt.split("rv:")
is_rev = parseFloat(temp[1])
}

// USE THE FOLLOWING VARIABLE TO CONFIGURE FRAMES TO SEARCH
// (SELF OR CHILD FRAME)

// If you want to search another frame, change "self" below to
// parent.frames["thisframe"]
// where "thisframe" is the name of the target frame
// eg: var frametosearch1 = parent.frames["thisframe"]

var frametosearch1 = self

function search(whichform, whichframe) {

// TEST FOR IE5 FOR MAC (NO DOCUMENTATION)

if (is_ie4up && is_mac) return;

// TEST FOR NAV 6 (NO DOCUMENTATION)

if (is_gecko && (is_rev <1)) return;

// INITIALIZATIONS FOR FIND-IN-PAGE SEARCHES

if(whichform.findthis.value!=null && whichform.findthis.value!='') {


str = whichform.findthis.value;
if(whichframe!=self)
frameval=true; // this will enable Nav7 to search child frame
win = whichframe;


}

else return; // i.e., no search string was entered

var strFound;

// NAVIGATOR 4 SPECIFIC CODE

if(is_nav4 && (is_minor < 5)) {

strFound=win.find(str); // case insensitive, forward search by default

// There are 3 arguments available:
// searchString: type string and it's the item to be searched
// caseSensitive: boolean -- is search case sensitive?
// backwards: boolean --should we also search backwards?
// strFound=win.find(str, false, false) is the explicit
// version of the above
// The Mac version of Nav4 has wrapAround, but
// cannot be specified in JS


}

// NAVIGATOR 7 SPECIFIC CODE (WILL NOT WORK WITH NAVIGATOR 6)

if (is_gecko && (is_rev >= 1)) {

if(frameval!=false) win.focus(); // force search in specified child frame
strFound=win.find(str, false, false, true, false, frameval, false);


// There are 7 arguments available:
// searchString: type string and it's the item to be searched
// caseSensitive: boolean -- is search case sensitive?
// backwards: boolean --should we also search backwards?
// wrapAround: boolean -- should we wrap the search?
// wholeWord: boolean: should we search only for whole words
// searchInFrames: boolean -- should we search in frames?
// showDialog: boolean -- should we show the Find Dialog?


}

if (is_ie4up) {

// EXPLORER-SPECIFIC CODE


if (TRange!=null) {
TRange.collapse(false)
strFound=TRange.findText(str)
if (strFound) TRange.select();

}
if (TRange==null || strFound==0) {
TRange=win.document.body.createTextRange()
strFound=TRange.findText(str)
if (strFound) TRange.select();

}
}

if (!strFound) alert ("Stringa '"+str+"' non trovata!") // string not found


}
// -->
</script>


</head>

<body>
<form name="form1" action="" onSubmit="search(document.form1, frametosearch1); return false"><input type="text" name="findthis" size="15"> <input type="submit" value="cerca nella pagina"></form>

[gachio]

ragazzi ci siete?