<!--
function preview(){
if(document.getElementById('text').value.length>0){
pr=window.open("","Preview","resizable=1,scrollbars=1,menubar=1,status=1,width=800,height=600,left=0,top=0");
pr.document.write(document.getElementById('text').value);
pr.document.close();}
else alert('沒有內容可預覽')}

// -->