<body>
<select class="filtered" name="13" id="73">
<option value="">Все</option>
<option value="152">90x190</option>
<option value="154">90x200</option>
<option value="166">120x190</option>
</select>
<select name="option[1016]" id="55">
<option value="22503">90x190</option>
<option value="22504">90x200</option>
<option value="22505">120x190</option>
</select>
<select name="option[504]" id="56">
<option value="201">90x190</option>
<option value="202">90x200</option>
<option value="203">120x190</option>
</select>
<script>
var sel = document.getElementById("73");
var sel1 = document.getElementById("55");
var sel2 = document.getElementById("56");
sel.onchange = function () {
var txt = this.options[this.selectedIndex].text;
selected(sel1, txt);
selected(sel2, txt);
}
function selected(el, txt) {
for (var i = 0; i < el.options.length; i++) {
if (el.options[i].text == txt) {
el.options[i].selected = true;
return;
}
}
el.options[0].selected = true;
};
</script>
</body>
id элементов должны быть оригинальные