function reg() { if(form1.user_name.value=="") { alert("请输入用户名!"); return false; } if(form1.user_password.value=="") { alert("请输入密码!"); return false; } return true; } function search1() { if(s_form.chaxun.value=="") { alert("请输入查询关键字!"); return false; } return true; } function openwin(id) { window.open("pic.asp?id="+id,"","toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,top=5,left=5,width=500,height=450"); }