function SendData(str)
 {

	var strShowMessage = document.getElementById('ShowMessages');
	var strfrmLogin = document.getElementById('LoginForm');
	var strShowLoginProgressbar = document.getElementById('ShowLoginProgressbar');
	var strLoginProgressbarImg = document.getElementById('LoginProgressbarImg');
    var strLoginProgressbarMessage = document.getElementById('LoginProgressbarMessage');

//show message from ajax
function ShowMessage(strMessage)

{

	strShowMessage.style.display = 'inline';
	strShowMessage.innerHTML = strMessage;

}

//show progress bar
function ShowProgressBar(status)

{

	if (status == true)
		{
			
			strfrmLogin.style.display = 'none';
			strShowLoginProgressbar.style.display = 'inline';
			strLoginProgressbarImg.style.display = 'inline';
			strLoginProgressbarMessage.innerHTML = 'Please Wait';
			strLoginProgressbarMessage.style.color="white";

		}
		else
		{

			strfrmLogin.style.display = 'inline';
			strShowLoginProgressbar.style.display = 'none';
			strLoginProgressbarImg.style.display = 'none';
			strLoginProgressbarMessage.innerHTML = '';
		}
	
}

	//Check fileds
	if (document.frmLogin.loginId.value == "" || document.frmLogin.loginPassword.value == "")
	
		{
		
			strShowMessage.style.display = 'inline';
			strShowMessage.innerHTML = 'All fields requested to fill.';
			return false;
		
		}
	
	//Clear error message
	if (strShowMessage.style.display=='inline')
	
		{
			strShowMessage.style.display = 'none';
		}
		
	
	ShowProgressBar(true);

	SendGet('CheckUser.asp');
	

		function SendGet(URL)
		{

			if (window.XMLHttpRequest)
	  {// code for IE7+, Firefox, Chrome, Opera, Safari
		xmlHttp=new XMLHttpRequest();
	  }
	else
	  {// code for IE6, IE5
		xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
	  }

		  xmlHttp.onreadystatechange=function()

			{

			if(xmlHttp.readyState==4 || xmlHttp.readyState=="complete")

			  {

				switch (xmlHttp.responseText)

				{
					//Everything is OK:

					case "00" :
						
						frmLogin.style.display = 'none';
						ShowProgressBar(false);
						strShowLoginProgressbar.style.display = 'inline';
						strLoginProgressbarMessage.innerHTML = 'Authentication was passed, Please Wait';
						strLoginProgressbarMessage.style.color="white";
						
alert("مجوز ورود به سیستم به صورت دائمی صادر شده\n لطفا پس از خاتمه ی کار حتما با استفاده از دکمه Logout از سیستم خارج شوید");


						setTimeout("window.location.href='';", 200);
						

					break;
			      
				  //Incorrect username or password
					case "01" :
						
						ShowMessage('Incorrect ID or Password');
						ShowProgressBar(false);

					break;
				
	
					//Error in db connection:
					case "04" :

						ShowMessage('The database is not available or an error occurred in connection process.');
						ShowProgressBar(false);

					break;	


					default :

						ShowMessage('System Error: ' + xmlHttp.status);
						ShowProgressBar(false);

			    	}

				}

			}

		  xmlHttp.open("POST", URL,true); 
		  xmlHttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
     	  xmlHttp.setRequestHeader('encoding', 'windows-1256');
		  xmlHttp.send("loginid=" + document.all.loginId.value + "&loginpassword=" + document.all.loginPassword.value);

		  }


}