<form action="" onsubmit="return check_sub()">
			<p class="tel">
				<label for="tel">手机</label>
				<input type="text" id="tel" onblur="yt_tel()">
				<span>手机格式不正确</span>
			</p>
			<p class="psd">
				<label for="psd">密码</label>
				<input type="password" id="psd" onblur="yt_psd()">
				<span>密码格式不正确</span>
			</p>
			<p>
				<input type="submit" id="sub">
			</p>

		</form>        

	<script type="text/javascript">
		function check_sub(){
			var check=yt_tel()&&yt_psd();
			if(!check){
				return false;
				console.log(‘false‘);
			}else{
				return true;
			}
		}
		//验证手机号
		var regTel=/(1[3-9]\d{9}$)/;
		
		function yt_tel(){
			var tel=$(‘#tel‘).val();
			if (!regTel.test(tel)) {
				$(‘.tel span‘).show();
				return false;
			}else{
				return true;

			}
		}
		//验证密码
		var regPsd=/^[_a-zA_Z0-9]{6,12}/;
		function yt_psd(){
			var psd=$(‘#psd‘).val();

			if (!regPsd.test(psd)) {
				$(‘.psd span‘).show();
				return false;
			}else{
			return true;
			}
		}

	$(‘#tel‘).focus(function(){
		$(‘.tel span‘).hide();
	});
	$(‘#psd‘).focus(function(){
		$(‘.psd span‘).hide();
	});
		
	</script>