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);

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

var frametosearch1 = self

function search(whichform, whichframe) {

if (is_ie4up && is_mac) return;

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

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;

if(is_nav4 && (is_minor < 5)) {
 
 strFound=win.find(str); // case insensitive, forward search by default

}

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);

}

if (is_ie4up) {

 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 ("'"+str+"' няма съвпадащи резултати!")

       
}