document.write('
');
document.write('
');
document.write('//find and replace str
');
document.write('String.prototype.findandreplace = function (find, replace) {
');
document.write(' var myString = this;
');
document.write(' var counter = 0;
');
document.write(' while (counter < myString.length) {
');
document.write(' var start = myString.indexOf(find, counter);
');
document.write(' if (start == -1) {
');
document.write(' break;
');
document.write(' } else {
');
document.write(' var before = myString.substr(0, start);
');
document.write(' var after = myString.substr(start + find.length, myString.length);
');
document.write(' myString = before + replace + after;
');
document.write(' var counter = before.length + replace.length;
');
document.write(' }
');
document.write(' }
');
document.write(' return myString;
');
document.write('};
');
document.write('
');
document.write('
');
document.write('
');