function validate_pwd()
{
  if ((pwd_emailLength()==true) && (pwd_emailValid(document.frmPwd.email.value)==true))
  return true;
  else
  return false;
}  

function pwd_emailLength()
{
  var emailID=document.frmPwd.email.value

  if ((emailID==null)||(emailID==""))
  {
	  alert("Please enter your Email address.");
	  return false;
  }
  
  if ((emailID.length < 5))
  {
	  alert("Email address should be a valid one and more than 5 characters.");
	  return false;
  }
  
  return true;
}
 
function pwd_emailValid(str)
{
    var at="@"
    var dot="."
    var lat=str.indexOf(at)
    var lstr=str.length
    var ldot=str.indexOf(dot)
  
	if (str.indexOf(at)==-1)
	{
	   alert("Invalid Email address. Please try again.");
	   return false;
	}

	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr)
	{
		alert("Invalid Email address. Please try again.");
		return false;
	}

	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr)
	{
		alert("Invalid Email address. Please try again.");
		return false;
	}

	if (str.indexOf(at,(lat+1))!=-1)
	{
		alert("Invalid Email address. Please try again.");
		return false;
	}

	if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot)
	{
		alert("Invalid Email address. Please try again.");
		return false;
	}

	if (str.indexOf(dot,(lat+2))==-1)
	{
		alert("Invalid Email address. Please try again.");
		return false;
	}
		
	if (str.indexOf(" ")!=-1)
	{
		alert("Invalid Email address. Please try again.");
		return false;
	}

 	return true;
}