var http_request = false;

var replace_into='';

function makePOSTRequest(url, parameters,area) 

	{

	//alert(rr);

  	replace_into = area;

  	http_request = false;

  	if (window.XMLHttpRequest) 

		{ // Mozilla, Safari,...

	 	http_request = new XMLHttpRequest();

	 	if (http_request.overrideMimeType) 

			{

			// set type accordingly to anticipated content type

			//http_request.overrideMimeType('text/xml');

			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, false);

  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 alertContents() 

	{

  	if (http_request.readyState == 4) 

		{

	 	if (http_request.status == 200) 

			{

			//alert(http_request.responseText);

			result = http_request.responseText;

			document.getElementById(replace_into).innerHTML = result;            

	 		} 

		else 

			{

			alert('There was a problem with the request.');

	 		}

  		}

	}

   

function get_id_object(id)

	{

	alert(id);

	return document.getElementById(id);	

	}

function get_id_val(id)

	{

		if(document.getElementById(id)!=null)

			return document.getElementById(id).value;	

	}

function email_check(email_address)

{

	var emailchar = /^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;

	if (emailchar.test(email_address)){

		return true

	}

	else

	{

		return false

	}

}

function openPopUp(URL) {

day = new Date();

id = day.getTime();

eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=1,scrollbars=1,location=0,statusbar=1,menubar=1,resizable=1,width=800,height=600,left = 50,top = 50');");

}

function loading_enable()

	{

	obj_loading=document.getElementById("loading");

	obj_loading.style.display="block";

	}

function loading_disable()

	{

	obj_loading=document.getElementById("loading");

	obj_loading.style.display="none";

	}

function logout()

	{

	loading_enable();

	makePOSTRequest('logout.php','','hmw_ltext1_user');

	loading_disable();

	}

function signin()

	{

	error=0;

	username=get_id_val('si_username');

	userpass=get_id_val('si_userpass');

	obj_err=document.getElementById("error_textid");

	loading_enable();

	if(username=="" || userpass=="")

		{

		error=1;

		html="<div class=\"error_text\">Required Field Marked With an asterisk(*)</div>";

		}

	if(error==1)obj_err.innerHTML=html;	

	else

		{

		post_param = 'username='+username+'&userpass='+userpass;

		makePOSTRequest('signin.php',post_param,'hmw_ltext1_user')

		}

	

	loading_disable();

	}

function delay()	

	{

	;

	}

function signup()

	{

	loading_enable();	

	makePOSTRequest('signup.php','','hmw_ltext1_user');

	loading_disable();

	}

function create()

	{

	name=get_id_val('su_name');

	username=get_id_val('su_username');

	email=get_id_val('su_email');

	pass1=get_id_val('su_pass1');

	pass2=get_id_val('su_pass2');

	obj_err=document.getElementById("error_textid");

	loading_enable();

	error=0;

	if(name=="" || username=="" || email=="" || pass1=="" || pass2=="" )

		{

		error=1;

		html='<div class="error_text">Required Field Marked With an asterisk(*)</div>';

		}

	else

		{

		html='<div class="error_text">';

		if(!email_check(email))

			{

			error=1;

			html= html+'Invalid Email Address.';

			}

		if(pass1!=pass2)

			{

			error=1;

			html = html + '<br/>Retype password missmatch.';

			}

		html= html + '</div>';	

		

		}

	

	if(error==1)obj_err.innerHTML=html;	

	else

		{

		post_param = 'name='+name+'&username='+username+'&email='+email+'&userpass='+pass1;

		makePOSTRequest('create_user.php',post_param,'hmw_ltext1_user');

		}	

		

	loading_disable();

	}