js控制再次点击按钮之间的间隔时间可防止重复提交

[removed] var wait = 60; function change() { $o = $("#J_refresh_checkcode"); if(wait == 0) { $o.removeAttr("disabled"); $o.html("看不清?换一张"); wait = 60; } else { $o.attr("disabled", true); $o.attr("font-color", "gray"); $o.html(wait + "秒后可重新获取"); wait--; if(