// JavaScript Document

function createRequestObject() {
    var tmpXmlHttpObject;
    
    //depending on what the browser supports, use the right way to create the XMLHttpRequest object
    if (window.XMLHttpRequest) { 
        // Mozilla, Safari would use this method ...
        tmpXmlHttpObject = new XMLHttpRequest();
	
    } else if (window.ActiveXObject) { 
        // IE would use this method ...
        tmpXmlHttpObject = new ActiveXObject("Microsoft.XMLHTTP");
    }
    
    return tmpXmlHttpObject;
}
var http = createRequestObject();

function findState(country_id)
{
	var country_id=document.getElementById("country").value;	
		var url="state.php?country_id="+country_id;
		//alert(country_id);
		http.open("GET",url, true);
	  	http.onreadystatechange = handleHttpResponse_myresponse;
	  	http.send(null);

}

function handleHttpResponse_myresponse()
{
	if (http.readyState == 4) 
	{
		var results = http.responseText;
		//alert(results);
		document.getElementById("fill_combo").innerHTML=results;
	}

}

function addfav(user_id,fav_user_id)
{
		var url="add_db.php?user_id=" + user_id + "&fav_user_id=" + fav_user_id + "&fav=" + 1 ;
		//alert(country_id);
		http.open("GET",url, true);
	  	http.onreadystatechange = handleHttpResponse_fav;
	  	http.send(null);

}
function handleHttpResponse_fav()
{
	if (http.readyState == 4) 
	{
		var resultsfav = http.responseText;
		//alert(results);
		document.getElementById("fav_msg").innerHTML=resultsfav;
	}

}




function already_exist()
{
		var url="user_management.php?uname=" + document.getElementById("uname").value + "&op=ae";
		//alert(country_id);
		http.open("GET",url, true);
	  	http.onreadystatechange = handleHttpResponse_already_exist;
	  	http.send(null);

}
function handleHttpResponse_already_exist()
{
	if (http.readyState == 4) 
	{
		var resultsalready_exist = http.responseText;
		//alert(results);
		document.getElementById("already").innerHTML=resultsalready_exist;
		if(document.getElementById("already").innerHTML=="Username available.")
		{
		document.getElementById("Submit").disabled = false;
		}
		else
		{
		document.getElementById("Submit").disabled = true;
		}
	}

}