// JavaScript Document

function validate_required(field,alerttxt)
{
	with (field)
	{
	  if (value==null||value=="")
	  {
	  alert(alerttxt);return false;
	  }
	  else
	  {
	  return true;
	  }
	}
}

  function echeck(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 E-mail Address")
		 return false
	  }

	  if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		 alert("Invalid E-mail Address")
		 return false
	  }

	  if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		  alert("Invalid E-mail Address")
		  return false
	  }

	   if (str.indexOf(at,(lat+1))!=-1){
		  alert("Invalid E-mail Address")
		  return false
	   }

	   if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		  alert("Invalid E-mail Address")
		  return false
	   }

	   if (str.indexOf(dot,(lat+2))==-1){
		  alert("Invalid E-mail Address")
		  return false
	   }
	  
	   if (str.indexOf(" ")!=-1){
		  alert("Invalid E-mail Address")
		  return false
	   }

	   return true					
  }

function validate_form_contactUS(thisForm) {
	with (thisForm)
	{
		if (validate_required(userName, "Please enter your name!") ==false)
			{userName.focus();return false;
		} //userName
		if (validate_required(userEmail,"Email name must be filled out!")==false) {
			userEmail.focus();return false;
		} //userEmail
		if (echeck(userEmail.value)==false) {
			userEmail.focus();return false;
		} //validEmail
	} //with(thisform)
}