Cytat(Pawel_W @ 3.01.2010, 18:17:22 )

omg, w js do tego jest funkcja replace, np.
Najpierw CZYTAJ potem gadaj.
1) A funkcję str_replace masz w kodzie?
2) U mnie wszystko działa
3) Wydaje mi się, że nie masz za bardzo pojęcia co robisz.
function str_replace (search, replace, subject, count) {
// Replaces all occurrences of search in haystack with replace
//
// version: 909.322
// discuss at: <a href="http://phpjs.org/functions/str_replace" target="_blank">http://phpjs.org/functions/str_replace</a> // + original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// + improved by: Gabriel Paderni
// + improved by: Philip Peterson
// + improved by: Simon Willison (http://simonwillison.net)
// + revised by: Jonas Raoni Soares Silva (http://www.jsfromhell.com) // + bugfixed by: Anton Ongson
// + input by: Onno Marsman
// + improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// + tweaked by: Onno Marsman
// + input by: Brett Zamir (http://brett-zamir.me) // + bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// + input by: Oleg Eremeev
// + improved by: Brett Zamir (http://brett-zamir.me)
// + bugfixed by: Oleg Eremeev
// % note 1: The count parameter must be passed as a string in order // % note 1: to find a global variable in which the result will be given
// * example 1: str_replace(' ', '.', 'Kevin van Zonneveld');
// * returns 1: 'Kevin.van.Zonneveld'
// * example 2: str_replace(['{name}', 'l'], ['hello', 'm'], '{name}, lars');
// * returns 2: 'hemmo, mars' var i = 0, j = 0, temp = '', repl = '', sl = 0, fl = 0,
f = [].concat(search),
r = [].concat(replace),
s = subject,
ra = r instanceof Array, sa = s instanceof Array; s = [].concat(s);
if (count) {
this.window[count] = 0;
}
for (i=0, sl=s.length; i < sl; i++) {
if (s[i] === '') {
continue;
}
for (j=0, fl=f.length; j < fl; j++) { temp = s[i]+'';
repl = ra ? (r[j] !== undefined ? r[j] : '') : r[0];
s[i] = (temp).split(f[j]).join(repl);
if (count && s[i] !== temp) {
this.window[count] += (temp.length-s[i].length)/f[j].length;} }
}
return sa ? s : s[0];
}
var tablica_znakow = new Array(' ','A');
var tablica_znakow2 = new Array('_','a');
wartosc_input ='Ala ma kota';
wartosc_input = str_replace(tablica_znakow, tablica_znakow2, wartosc_input);