function validateMyForm() 
{ 
	if (Trim(document.login.txtusername.value) == "")
	{  
		alert('Please enter valid user name.');
		document.login.tempfalseval.value = 1;
		return false;
	}
	if (Trim(document.login.txtpassword.value) == "")
	{
		alert('Please enter valid password.');
		document.login.tempfalseval.value = 2;
		return false;
	}
	return true;
}	

function loginvalidate()
{
	var retdata = validateMyForm();
	
	if(retdata == true)
	{
		ajaxObj=GetXmlHttpObject()
		if (ajaxObj==null)
		{
			alert ("Browser does not support HTTP Request")
			return
		} 
		username = document.login.txtusername.value;
		password = escape(document.login.txtpassword.value);

		var passData = 'username='+username+'&password='+password;
		
		document.getElementById("divitag").innerHTML='<table width="100%"><tr><td align="left" style="padding-left:100px;"><img src="images/loader_v2.gif"></td></tr></table>'; 
		my_ajax_url = "ajax_login.php";
		ajaxObj.open("POST", my_ajax_url, true);
		ajaxObj.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
		ajaxObj.onreadystatechange = finalEditHandeler
		ajaxObj.send(passData); 
		return false;
	}
	else
	{
		if(document.login.tempfalseval.value == 1)
		{
			document.login.txtusername.focus();
		}
		if(document.login.tempfalseval.value == 2)
		{
			document.login.txtpassword.focus();	
		}
		return false;
	}
}

function finalEditHandeler()
{
	if (ajaxObj.readyState==4 || ajaxObj.readyState=="complete")
	{ 
	 	//alert(ajaxObj.responseText);
		var response = ajaxObj.responseText;
		if(response == 1)
		{
			window.location = "/user_info.php";	
		}
		else if(response == 2)
		{
			window.location = "/admin/admin_page.php";	
		}	
		else
		{
			document.getElementById("divitag").innerHTML=ajaxObj.responseText 
		}
	}      
}