var preview_timer;

function update_action(indx) {
resetElements();
var stockCode=document.getElementById('code'+indx+'_id').value;
if (stockCode.length!=6) return;
var ajaxcmd='loadXMLDoc("/cgi-local/ajax/prodPreview.pl/a/a?stock_code='+escape(stockCode)+'&d="+escape(new Date()),true,"");';
if (preview_timer) window.clearTimeout(preview_timer);
preview_timer=window.setTimeout(ajaxcmd,100);
}

function onblur_action() {
window.clearTimeout(preview_timer);
resetElements();
}

function resetElements() {
document.getElementById('prodpreview_id').innerHTML='';
}