// JavaScript Document

addOnload(checkForm);

function checkForm() {
	var allForms = document.getElementsByTagName("form","input");
	for (i=0; i<allForms.length; i++) {
		allForms[i].onsubmit = checkInput;
	}
}

function checkInput() {
	var _form = this;
	for (i=0; i<_form.elements.length; i++) {
		if ((_form.elements[i].className.indexOf("req") > -1) && (_form.elements[i].value == "")) {
			alert("Please fill all requered fields (marked with *).");
			_form.elements[i].focus();
			return false;
		}
		if ((_form.elements[i].className.indexOf("email") > -1) && (!checkEmail(_form.elements[i].value))) {
			alert("Email address is not valid, please try again");
			_form.elements[i].focus();
			return false;
		}
	}
	
	if (document.getElementById('TaC') && (document.getElementById('TaC').checked == false)) {
		alert("Please tick the box to make sure that you have understood\nour privacy policy, terms and conditions."); return false; }
	return true;
}

function checkEmail(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){
		   return false
		}

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

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

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

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

 		 return true					
	}