js验证手机号不为空如果后面给出提示则不能实现添加

HTML页面
<form method="post" action="__URL__/add_lawyer"  enctype="multipart/form-data" onsubmit="return checksel()">
<dl class="clearfix lab_tex">
<dt>*律师电话</dt>
<dd>
<!--<input type="text" class="tex" name="article_author" id="article_author" onkeyup="onfun()"/><span id="di1"></span>-->
<input type="text" class="tex" name="p_tel" id="p_tel" required onblur="tel()"/><span id="lay_tel"></span>

</dd>
</dl>
<dl class="clearfix lab_tex">
<dt>*律师手机</dt>
<dd>
<!--<input type="text" class="tex" name="article_author" id="article_author" onkeyup="onfun()"/><span id="di1"></span>-->
<input type="text" class="tex" name="p_phone" id="p_phone" required  onblur="phone()"/><span id="lay_phone"></span>

</dd>
</dl>
<dl class="clearfix lab_tex lab_tex1">
<dt> </dt>
<dd>
<input type="submit" value="添加" class="sumbit">
</dd>
</dl>

</form>

<script type="text/javascript">
//验证电话号码符合规范
function tel(){
var myreg = /^\d{3}-\d{8}|\d{4}-\d{7}$/;
if(!myreg.test($("#p_tel").val()))
{
$("#lay_tel").html("<font style='color:red'>请输入有效的电话号码</font>");
return false;
}else{
$("#lay_tel").html("<font style='color:white'>√</font>");
}
}

//验证手机号符合规范
function phone(){
var myreg =/^1[358][0123456789]\d{8}$/;
if(!myreg.test($("#p_phone").val()))
{
$("#lay_phone").html("<font style='color:red'>请输入有效的手机号码</font>");
return false;
}else{
$("#lay_phone").html("<font style='color:white'>√</font>");
}
}

//验证总体
function checksel(){
if(tel()==false){
return false;
}else{

}
if(phone()==false){
return false;
}else{

}

}
</script>