var preventSubmit;
var button_timer;

function down_action(stockCode) {

preventSubmit=false;
var ajaxcmd='preventSubmit=true; loadXMLDoc("/cgi-bin/ajax/holdBuy.pl?stock_code='+escape(stockCode)+'&d="+escape(new Date()),true,"Updating basket...");';
if (button_timer) window.clearTimeout(button_timer);

button_timer=window.setTimeout(ajaxcmd,700);
}

function up_action() {
window.clearTimeout(button_timer);
}

function click_action() {
return !preventSubmit;
}