// JavaScript Document



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){

       return false

    }

    if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){

      alert("Your email address is invalid.")

       return false

    }

    if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){

      alert("Your email address is invalid.")

        return false

    }

     if (str.indexOf(at,(lat+1))!=-1){

        alert("Your email address is invalid.")

        return false

     }

     if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){

        alert("Your email address is invalid.")

        return false

     }

     if (str.indexOf(dot,(lat+2))==-1){

        alert("Your email address is invalid.")

        return false

     }

     if (str.indexOf(" ")!=-1){

        alert("Your email address is invalid.")

        return false

     }        

  }





function checkSignup() {



  var problem;

  problem = 'No';



  if (document.signup.name.value.length < "1") { problem = 'Yes'; alert ('Please provide your name.'); }

  if (document.signup.email.value.length < "1") { problem = 'Yes'; alert ('We need your email address. You will not be able to access swif.ly without providing it.');  }

  if (document.signup.password.value.length < "1") { problem = 'Yes'; alert ('Please provide a password.'); } 

  if (!document.signup.terms.checked) { problem = 'Yes'; alert ('You have to agree to the Terms and Privacy Policy to join.'); }



  /*

  var re = /^[\w ]+$/; // validation fails if the input doesn't match the regular expression 

  if(!re.test(document.signup.name.value)) { 

    alert("Your name can only contain letters."); 

    document.signup.name.value="";

    document.signup.name.focus();  

    problem = 'Yes';  

  } 

  */



  if (echeck(document.signup.email.value)==false){

    document.signup.email.value=""

    document.signup.email.focus()

    problem = 'Yes';

    return false;

  }



  if (problem == 'No') {

    //document.getElementById('submitholder').innerHTML = '<input type=image name=submit id="checkUser" value=submit src="images/btn_join.png">';

    problem = 'No';

  	return true;

  } else {

    problem = 'No';

  	return false;

  }



}