Hi there guys I want the error i.e "Not Valid Email" of my email to appear infront of EMAIL: by using "onBlur", like in case of password the error of "Password Do not Match" appears infront of Confirm password. can some me tell me what iam doing wrong??

Code:
<html>
	<head>
		<title>Form</title>
		<link rel="stylesheet" type="text/css" href="form.css" />
	</head>
	<body>
		<script>
		function s_form()
		{
			var uname=document.getElementById("uname").value;
			var pass=document.getElementById("pass").value;
			var conpass=document.getElementById("conpass").value;
			var email=document.getElementById("email").value;
			var fname=document.getElementById("fname").value;
			var lname=document.getElementById("lname").value;
			
			var atpos=email.indexOf("@");
			var dotpos=email.lastIndexOf(".");
			
			if(uname=="" || pass=="" || email=="" || fname=="" || lname=="")
			{
				document.getElementById("imp").innerHTML="You must fill all the * fields";
			}	
			
		}
		
		function checkmail()
			{
				 var x=document.getElementById("pa");
				 if(atpos<1 || dotpos<atpos+2 || dotpos+2>=email.length)
				{
					
					x.innerHTML="Not Valid Email";
					x.style.color="red";
				}
				
				else
				{
					document.write("yea");
				}
			}
		function checkpass()
		{
			
			var pass_res=document.getElementById("ap");
			if (pass=="" || conpass=="")
			{
				pass_res.innerHTML="Enter Password";
			}
			else
			{
				if (pass != conpass)
				{
					pass_res.innerHTML="Password Do not Match";
				}
				else
				{
					pass_res.innerHTML="Password Match";
					pass_res.style.color="blue";
				}
			}
		}
				
		</script>
		<form>
		<h2>Enter Info for Sign UP</h2><br/>
		<label id="imp">Fill all the * Fields</label><br/><br/>
		Enter User Name:<input id="uname" type="text" /><b>*</b><br/></div>
		Enter Password:<input id="pass" type="password"/><b>*</b><br/></div>
		Confirm Password:<input id="conpass" type="password" onBlur="checkpass();" /><span id="ap"></span><br/>
		Enter Email:<input id="email" type="text" onBlur="checkmail();"/><label id="pa"></label><br/>
		Enter First Name:<input id="fname" type="text"/><b>*</b><br/>
		Enter Last Name:<input id="lname" type="text"/><b>*</b><br/><br/>
		<input type="button" value="submit" onClick="s_form();"/>
		</form>
	</body>
 </html>