var awer_say = false; if (document.all){ awer_say = document.all['awer_saying']; }else if(document.getElementById){ awer_say = document.getElementById('awer_saying'); } if(awer_say){ awer_say.innerHTML = '把装有热水的杯子放入冷水中浸泡，然后在冷水中撒上一把盐，这样能加速开水的冷却。《生活常识》'; }