var xmlhttp;

function submitSuggestion()
{

	xmlhttp=GetXmlHttpObject();
	
	if (xmlhttp==null)
	{
		alert ("Your browser does not support XMLHTTP!");
		return;
	}
	
	if (document.getElementById("customer_name").value == "")
	{
		alert ("Please enter your name");
		return;
	}
	if (document.getElementById("customer_email").value == "")
	{
		alert ("Please enter your email");
		return;
	}
	if ( echeck(document.getElementById("customer_email").value) == false)
	{
		return;
	}

	if (document.getElementById("item1").value == "" && document.getElementById("item2").value == "" && document.getElementById("item3").value == "" && document.getElementById("item4").value == "")
	{
		alert("Please enter at least one product name");
		return;
	}
	if (document.getElementById("item1").value != "" && document.getElementById("country1").value == "")
	{
		alert("Please enter the country of origin of the first product");
		return;
	}
	
	if (document.getElementById("item2").value != "" && document.getElementById("country2").value == "")
	{
		alert("Please enter the country of origin of the second product");
		return;
	}
	if (document.getElementById("item3").value != "" && document.getElementById("country3").value == "")
	{
		alert("Please enter the country of origin of the third product");
		return;
	}
	if (document.getElementById("item4").value != "" && document.getElementById("country4").value == "")
	{
		alert("Please enter the country of origin of the fourth product");
		return;
	} 	
	
	var url="insertProductWish.php?lang=eng";
	
	// append parameters into URL to pass to further process
	url = url + "&items[]=" + encodeURIComponent(document.getElementById("item1").value);
	url = url + "&items[]=" + encodeURIComponent(document.getElementById("item2").value);
	url = url + "&items[]=" + encodeURIComponent(document.getElementById("item3").value);
	url = url + "&items[]=" + encodeURIComponent(document.getElementById("item4").value);
	
	url = url + "&countries[]=" + encodeURIComponent(document.getElementById("country1").value);
	url = url + "&countries[]=" + encodeURIComponent(document.getElementById("country2").value);
	url = url + "&countries[]=" + encodeURIComponent(document.getElementById("country3").value);
	url = url + "&countries[]=" + encodeURIComponent(document.getElementById("country4").value);
	
	url = url + "&comments=" + encodeURIComponent(document.getElementById("item5").value);
	
	url = url + "&customer_name=" + encodeURIComponent(document.getElementById("customer_name").value);
	url = url + "&customer_email=" + encodeURIComponent(document.getElementById("customer_email").value);
	if (document.getElementById("Checkbox").checked)
	{
		url = url + "&receive_news=1";
	}
	else 
	{
		url = url + "&receive_news=0";
	}

	xmlhttp.onreadystatechange=stateChanged;
	xmlhttp.open("GET",url,true);
	xmlhttp.send(null);
	
	document.getElementById("content").innerHTML="<h1>Submitting...</h1>";

}

function stateChanged()
{
	if (xmlhttp.readyState==4 && xmlhttp.status == 200)
  	{
		document.getElementById("content").innerHTML=xmlhttp.responseText;
  	}
}

function GetXmlHttpObject()
{
	if (window.XMLHttpRequest)
	{
	// code for IE7+, Firefox, Chrome, Opera, Safari
	return new XMLHttpRequest();
	}
	if (window.ActiveXObject)
	{
	// code for IE6, IE5
	return new ActiveXObject("Microsoft.XMLHTTP");
	}
	return null;
}


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("Please enter a valid email address")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Please enter a valid email address")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("Please enter a valid email address")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("Please enter a valid email address")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("Please enter a valid email address")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("Please enter a valid email address")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    alert("Please enter a valid email address")
		    return false
		 }

 		 return true					
	}