// JavaScript Document
// Validation for subscription on homepage

    function validSubForm(passForm) {
	   
       v_error = "The following problem(s) have been found on the form. \n\n";
	   v_valid = true;   
	  
       
       if(passForm.email.value == "" || isEmail(passForm.email.value) == false){v_error = v_error + "Enter a valid Email address\n"; if(v_valid){passForm.email.focus();} v_valid = false; }	   	   	   
	       	   
      
   
	   if (v_valid == false){alert(v_error)}
	   
	   v_error = "The following problem(s) have been found on the form. \n\n";
	   return v_valid;	   
	} // end validForm(passForm)					



			
			

			function isEmail(s){

				var i = 1;

				var sLength = s.length;

				while ((i < sLength) && (s.charAt(i) != "@")){ i++ }

				if ((i >= sLength) || (s.charAt(i) != "@")) return false;

					else i += 2;

				while ((i < sLength) && (s.charAt(i) != ".")){ i++ }

				if ((i >= sLength - 1) || (s.charAt(i) != ".")) return false;

					else return true;

			}