var xmlhttp

function PostEntry()
{
str = document.getElementById("name").value;
str1 = document.getElementById("email").value;
str2 = document.getElementById("message").value;
str3 = document.getElementById("rating").selectedIndex;
str3 = str3 + 1;

	if(str2 != "")
	{
		str2 = str2.replace(/\n/g, "<br />");
		xmlhttp=GetXmlHttpObject();
		if (xmlhttp==null)
		  {
		  alert ("Your browser does not support XMLHTTP!");
		  return;
		  }
		
		var url="postguest.php";
		url=url+"?n="+str;
		url=url+"&e="+str1;
		url=url+"&m="+str2;
		url=url+"&r="+str3;
		url=url+"&t=true";
		xmlhttp.onreadystatechange=stateChanged;
		xmlhttp.open("GET", url, true);
		xmlhttp.send(null);
	}
	else
	{
		document.getElementById("guestbookMessages").innerHTML= "Please do not post empty messages! <br /> <a href=\"\" onclick=\"back2post()\">Back to form</a>";
	}

}

function stateChanged()
{
	if (xmlhttp.readyState==4)
  	{
		var str1 = xmlhttp.responseText;
	 	document.getElementById("guestbookMessages").innerHTML = str1;
	}
}

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 back2post()
{
	var str1 = "<table width=\"100%\"><tr><td width=\"31%\" align=\"right\"><b>Name: </b></td><td width=\"69%\"><input type=\"text\" name=\"name\" id=\"name\" /></td></tr><tr><td align=\"right\"><b>Email: </b></td><td><input type=\"text\" name=\"email\" id=\"email\" /></td></tr><tr><td colspan=\"2\"><b>Rating: </b><select name=\"rating\" size=\"1\" id=\"rating\"><option value=\"1\">1</option><option value=\"2\">2</option><option value=\"3\">3</option><option value=\"4\">4</option><option value=\"5\" selected=\"selected\">5</option></select> (1- poor, 5- excellant)</td></tr> <tr><td colspan=\"2\"><b><br />Message: </b></td></tr><tr><td colspan=\"2\"><textarea name=\"message\" id=\"message\" cols=\"45\" rows=\"5\"></textarea></td></tr><tr><td colspan=\"2\"><br /><button name=\"submit\" id=\"submit\" onclick=\"PostEntry()\">Submit</button>  - <input type=\"reset\" name=\"Reset\" id=\"Reset\" value=\"Reset\" /></td></tr></table>";

		document.getElementById("guestbookMessages").innerHTML = str1;
}

function GetEntries()
{

xmlhttp=GetXmlHttpObject();
		if (xmlhttp==null)
		  {
		  alert ("Your browser does not support XMLHTTP!");
		  return;
		  }
		
		var url="postguest.php";
		url=url+"?t=false";
		xmlhttp.onreadystatechange=stateChanged;
		xmlhttp.open("GET", url, true);
		xmlhttp.send(null);


}