function validate(){
	// Make quick references to our fields
	var email = document.getElementById('email');
	var realname = document.getElementById('realname');
	var bizname = document.getElementById('bizname');
	var verifytext = document.getElementById('verifytext');
	// var addr = document.getElementById('addr');
	 var phone = document.getElementById('phone');
	// var state = document.getElementById('state');
	// var username = document.getElementById('username');
	
	// Check each input in the order that it appears in the form!
	if(isAlphabet(realname, "Please enter only letters for your name.")){
      if(emailValidator(email, "Please enter a valid e-mail address.")){
	    if(isAlphabet(bizname, "Please enter only letters for your company name.")){
	  	  if(isNumeric(phone, "Please enter a valid phone number.")){
	      	if(notEmpty(verifytext, "Please enter the security code.")){
		// if(isAlphanumeric(addr, "Numbers and Letters Only for Address")){
				// if(madeSelection(state, "Please Choose a State")){
					// if(lengthRestriction(username, 6, 8)){
							return true;
						}
					// }
				// }
			 }
		 }
	  }
	}
	
	
	return false;
	
}

function notEmpty(elem, helperMsg){
	if(elem.value.length == 0){
		alert(helperMsg);
		elem.focus(); // set the focus to this input
		return false;
	}
	return true;
}

function isNumeric(elem, helperMsg){
	var numericExpression = /^[0-9]+$/;
	if(elem.value.match(numericExpression)){
		return true;
	}else{
		alert(helperMsg);
		elem.focus();
		return false;
	}
}

function isAlphabet(elem, helperMsg){
	var alphaExp = /^[-\sa-zA-Z]+$/;
	if(elem.value.match(alphaExp)){
		return true;
	}else{
		alert(helperMsg);
		elem.focus();
		return false;
	}
}

function isAlphanumeric(elem, helperMsg){
	var alphaExp = /^[0-9a-zA-Z]+$/;
	if(elem.value.match(alphaExp)){
		return true;
	}else{
		alert(helperMsg);
		elem.focus();
		return false;
	}
}

function lengthRestriction(elem, min, max){
	var uInput = elem.value;
	if(uInput.length >= min && uInput.length <= max){
		return true;
	}else{
		alert("Please enter between " +min+ " and " +max+ " characters");
		elem.focus();
		return false;
	}
}

function madeSelection(elem, helperMsg){
	if(elem.value == "Please Choose"){
		alert(helperMsg);
		elem.focus();
		return false;
	}else{
		return true;
	}
}

function emailValidator(elem, helperMsg){
	var emailExp = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
	if(elem.value.match(emailExp)){
		return true;
	}else{
		alert(helperMsg);
		elem.focus();
		return false;
	}
}