<script>

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


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>
<!-- Codice HTML prelevato da: http://www.htmlscriptweb.com - gioca e vinci con http://www.vinceresoldionline.com/ - play and win with http://www.casinobonuslink.com/ - prelevato da http://www.web-link.it -->

<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>