/* Email a friend functions */
var formErrorMsg = "The fields highlighted below are incomplete or invalid.<br />Please confirm your information and resubmit."
	
function showEAF(){
	var div = document.getElementById('eaf-overlay');
	var pageDivs = getElementsByClassName('subpagecontent', 'div');
	if (pageDivs.length==0) {
		pageDivs = getElementsByClassName('subpagecontent3', 'div');
	}
	if (pageDivs.length>=1) {
		var obj = pageDivs[0];
		if (isIE) { 
			obj.style.filter = "alpha(opacity=" + 30 + ")";
		} else {
			obj.style.opacity=0.3;	
		}
	}
	div.style.display='block';
}

function hideEAF(){
	var div = document.getElementById('eaf-overlay');
	// Restore page body background
	var pageDivs = getElementsByClassName('subpagecontent', 'div');
	if (pageDivs.length==0) {
		pageDivs = getElementsByClassName('subpagecontent3', 'div');
	}
	if (pageDivs.length>=1) {
		var obj = pageDivs[0];		
		if (isIE) { 
			obj.style.filter = "alpha(opacity=" + 100 + ")";
		} else {
			obj.style.opacity=1;
		}
	}
	resetEAFForm();
	div.style.display='none';
}

function resetEAFForm(){
	$("#errorMessage").html('')
	$("#labelSenderName").removeClass('errordisplay');
	$("#labelSenderEmail").removeClass('errordisplay');
	$("#labelRecipientName").removeClass('errordisplay');
	$("#labelRecipientEmail").removeClass('errordisplay');
	$("#senderName").val('');
	$("#senderEmail").val('');
	$("#recipientName").val('');
	$("#recipientEmail").val('');
	
	$("#eaf-confirm").hide();
	$("#eaf-ajax-error").hide();
	$("#eaf-form").show();
}

function displayConfirm(email){
	$("#eaf-form").hide();
	$("#eaf-ajax-error").hide();
	$("#eaf-confirm").show();
	$("#confirmRecipientEmail").html(email);
}

function processEAF(data) {
	  if (trim(data).length > 0) { // If Errors
		  $("#errorMessage").html(formErrorMsg);
		  if (data.indexOf('senderName')>0) {
			  $("#labelSenderName").addClass('errordisplay');
		  } else {
			  $("#labelSenderName").removeClass('errordisplay');
		  }
		  if (data.indexOf('senderEmail')>0) {
			  $("#labelSenderEmail").addClass('errordisplay');
		  } else {
			  $("#labelSenderEmail").removeClass('errordisplay');
		  }
		  if (data.indexOf('recipientName')>0) {
			  $("#labelRecipientName").addClass('errordisplay');
		  } else {
			  $("#labelRecipientName").removeClass('errordisplay');
		  }
		  if (data.indexOf('recipientEmail')>0) {
			  $("#labelRecipientEmail").addClass('errordisplay');
		  } else {
			  $("#labelRecipientEmail").removeClass('errordisplay');
		  }
		  
		  if (data.indexOf('systemError')>0) { // System error
			 showEAFError();
		  }
	  } else {
		 $("#eaf_form").attr('display','none');
		  resetEAFForm();
		  displayConfirm($recipientEmail);
	  }
}

function showEAFError() {
	$("#eaf-form").hide();
	$("#eaf-confirm").hide();
	$("#eaf-ajax-error").show();
}

// JQuery
$(document).ready(function() {
	$("#eaf-submit").click(function(){
		$myUrl = document.getElementById("myUrl").value;
		$senderName = document.getElementById("senderName").value;
		$senderEmail = document.getElementById("senderEmail").value;
		$recipientName = document.getElementById("recipientName").value;
		$recipientEmail = document.getElementById("recipientEmail").value;
		
		  $.ajax({
		      type: "POST",
		      url: "EAFServlet",
		      data: {myUrl:$myUrl, 
					 senderName:$senderName, 
					 senderEmail:$senderEmail, 
					 recipientName:$recipientName, 
					 recipientEmail:$recipientEmail},
		      dataType: "html",
		      success:  function(data){
					processEAF(data)	 
			    },
		      error: showEAFError
		   });
	});
});