验证信息

function checkform(from)

{

var from =from;

var name=from.name.value;

var emil=from.emil.value;

var tel=from.tel.value;

if (name==""){

alert("姓名不能为空！");

from.name.focus();

return false;

}

if (emil==""){

alert("邮箱不能为空！");

from.emil.focus();

return false;

}else{

var reg = /^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/;

email_Flag = reg.test(emil);

if(!email_Flag){

alert("对不起，您输入的邮箱地址格式错误。");

return false;

}

}

if (tel==""){

alert("电话不能为空！");

from.tel.focus();

return false;

}else{

var reg0=/^1\d{10}$/;

if(!(reg0.test(tel))){

alert("手机号码不正确!");

return false;

}

}

 from.onsubimt();

}