// email input form scripts
var loaderVisible = false;
var confirmVisible = false;
var buttonVisible = false;

function validateEmail( emailAddress)
{
   var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
   if(reg.test(emailAddress) == true) {
     var button = document.getElementById("button");
	 button.style.cursor = "pointer";
	
	// button.setAttribute("onmouseover","this.src='img/button_mouseover.gif';");
	 //button.setAttribute("onmouseout","this.src='img/button.gif';");
	

	 //Effect.Appear("button", {to: 1.0, duration: 0.5});
	 //Effect.Fade('loader', { duration: 0.5 });
	 //Effect.Appear('confirm', { duration: 0.5 });
	 // -- Replacement code 
	 button.style.opacity = '1.0'; 
	 button.style.filter = 'alpha(opacity=100)';
	 document.getElementById('loader').style.display = 'none';
	 document.getElementById('confirm').style.display = 'block';
	 // --
	 loaderVisible = false;
	 confirmVisible = true;
	 return true
   }
   else
   {
	   if( !loaderVisible && emailAddress != "")
	   {
		  if( confirmVisible )
		  {
			  	//Effect.Fade('button', { to: 0.5, duration: 0.25, queue: 'front' });
				//Effect.Fade('confirm', { duration: 0.25, queue: 'front' });
				//Effect.Appear("loader", { duration: 0.25, queue: 'end' } );
				// -- Replacement code 
				var button = document.getElementById('button');
	 			button.style.opacity = '0.5'; 
	 			button.style.filter = 'alpha(opacity=50)';
	 			document.getElementById('loader').style.display = 'block';
	 			document.getElementById('confirm').style.display = 'none';
	 			// --
				loaderVisible = true;
				document.getElementById("button").style.cursor = "auto";
				document.getElementById("button").setAttribute( "onmouseover", "" );
				document.getElementById("button").setAttribute( "onmouseout", "" );
				confirmVisible = false;
		  }
		  else 
		  {
				//Effect.Appear("loader", { duration: 0.8} );
				// -- Replacement code 
				document.getElementById('loader').style.display = 'block';
				//--
		  		loaderVisible = true;  
		  }
		  
	   }
	   else if ( loaderVisible && emailAddress == "" || confirmVisible)
	   {
		  //Effect.Fade("loader", { duration: 0.5} );
		  // -- Replacement code 
		  document.getElementById('loader').style.display = 'none';
		  //--
		  loaderVisible = false;
	   }
       return false;   
   }
}

function onFocusHandler( object )
{
	if( object.value == "Enter e-mail address" )
	{
		object.value = "";
	}
}

function onBlurHandler( object )
{
	if( validateEmail( object.value ) == false || object.value == "")
	{
		object.value = "Enter e-mail address";
		//Effect.Fade("loader", { duration: 0.5} );
		//Effect.Fade("button", { to: 0.5, duration: 0.5} );
		//Effect.Fade("confirm", { duration: 0.5} );
		// -- Replacement code 
	 	var button = document.getElementById('button');
		button.style.opacity = '0.5'; 
	 	button.style.filter = 'alpha(opacity=50)';
	 	document.getElementById('loader').style.display = 'none';
	 	document.getElementById('confirm').style.display = 'none';
	 	// --
		document.getElementById("button").style.cursor = "auto";
		document.getElementById("button").setAttribute( "onmouseover", "" );
		document.getElementById("button").setAttribute( "onmouseout", "" );
		loaderVisible = false;
	}
}

// ajax handler

var http_request = false;
function makePOSTRequest(url, parameters) {
  http_request = false;
   	document.getElementById('loader').style.display = 'block';
	document.getElementById('confirm').style.display = 'none';
	
  if (window.XMLHttpRequest) { 
	 http_request = new XMLHttpRequest();
	 if (http_request.overrideMimeType) {
	
		http_request.overrideMimeType('text/html');
	 }
  } else if (window.ActiveXObject) { // IE
	 try {
		http_request = new ActiveXObject("Msxml2.XMLHTTP");
	 } catch (e) {
		try {
		   http_request = new ActiveXObject("Microsoft.XMLHTTP");
		} catch (e) {}
	 }
  }
  if (!http_request) {
	 alert('Cannot create XMLHTTP instance');
	 return false;
  }
  
  http_request.onreadystatechange = alertContents;
  http_request.open('POST', url, true);
  http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
  http_request.setRequestHeader("Content-length", parameters.length);
  http_request.setRequestHeader("Connection", "close");
  http_request.send(parameters);
}


function get(obj) {
  var poststr = "email=" + encodeURI( document.getElementById("emailField").value ) +
  "&listid=" + encodeURI( document.getElementById("listid").value ) +
  "&source_field=" + encodeURI( document.getElementById("source_field").value );
  makePOSTRequest('../lib/emailregister.php', poststr);
}
function get_unsub(obj) {
  var poststr = "email=" + encodeURI( document.getElementById("emailField").value ) +
  "&listid=" + encodeURI( document.getElementById("listid").value ) +
  "&source_field=" + encodeURI( document.getElementById("source_field").value ) +
  "&unsubscribe=" + encodeURI( document.getElementById("unsubscribe").value );
  makePOSTRequest('../lib/emailregister.php', poststr);
}
function onFocusHandler( object )
{
	if( object.value == "enter your e-mail" )
	{
		object.value = "";
	}
}