function subscribe_newsletter() {
	
	var email=$("#subscribe_email").attr('value');
	
	var fail=0; error="";
	
	if (email=="") { error+='Please enter your email address'; fail=1; }
	//if ((!isValidEmail(email)) && (email!="")) { error+='Please enter a correct email address'; fail=1; }

	if (fail==0) {
		var dataString="pg=subscribe&&email=" + email;
		
		$.ajax({  
		   type: "GET",  
		   url: "index.php",  
		   data: dataString,  
		   success: function(msg) {  
				document.getElementById('message').innerHTML=msg;
		   }  
		});  
	} else {
		alert(error);
	}
     
}

/**
 * Login user
 *
 */

function login() {
	
	var username=$("#username").attr('value');
	var password=$("#password").attr('value');
	
	var fail=0; error="";
	
	if (username=="") { error+='Please enter your user name\n'; fail=1; }
	if (password=="") { error+='Please enter your password'; fail=1; }
	

	if (fail==0) {
		var dataString="pg=login&username=" + username + "&password=" + password;
		
		$.ajax({  
		   type: "GET",  
		   url: "index.php",  
		   data: dataString,  
		   success: function(msg) {  
		   		if (msg=='success') {
					window.location.href = 'client';
				} else {
					alert('Login fail, please try again');	
				}
				
		   }  
		});  
	} else {
		alert(error);
	}
     
}

/**
 * Login user from payment dialog
 *
 * @param string query additional query string to attach
 */

function loginPay(query) {
	
	var username=$("#username-pay").attr('value');
	var password=$("#password-pay").attr('value');
	
	var fail=0; error="";
	
	if (username=="") { error+='Please enter your user name\n'; fail=1; }
	if (password=="") { error+='Please enter your password'; fail=1; }
	

	if (fail==0) {
		var dataString="pg=login&username=" + username + "&password=" + password;
		
		$.ajax({  
		   type: "GET",  
		   url: "index.php",  
		   data: dataString,  
		   success: function(msg) {  
		   		if (msg=='success') {
					window.location.href = 'client' + query;
				} else {
					alert('Login fail, please try again');	
				}
				
		   }  
		});  
	} else {
		alert(error);
	}
     
}


function emailto(type,id,file) {
	$("#type").val(type);
	$("#id").val(id);
	$("#file").html(file);
}


function send_email() {
	
	var email1=$("#email1").attr('value');
	var email2=$("#email2").attr('value');
	var type=$("#type").attr('value');
	var id=$("#id").attr('value');
	var message=$("#message").val();


	var fail=0; error="";
	
	if (email1=="") { error+='Please enter your email address\n'; fail=1; }
	if (email2=="") { error+='Please enter recipient\'s email address'; fail=1; }
	//if ((!isValidEmail(email)) && (email!="")) { error+='Please enter a correct email address'; fail=1; }

	if (fail==0) {
		var dataString="pg=sendemail&email1=" + email1 + "&email2=" + email2 + "&type=" + type + "&id=" + id + "&message=" + message;
		
		$.ajax({  
		   type: "GET",  
		   url: "index.php",  
		   data: dataString,  
		   success: function(msg) {  
				alert(msg);
				$("#email-popup").hide(200);
		   }  
		});  
	} else {
		alert(error);
	}
     
}