var http_request = false;

function makePOSTRequest(url, parameters, type) {
  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.modifier = type;
  http_request.onreadystatechange = alertContents;
  http_request.open('POST', url, true);
  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);
		//alert(http_request.modifier);
		result = http_request.responseText;
		
		if (http_request.modifier == 'su_fn') { 
			document.getElementById('su_1').innerHTML = result;
			MM_showHideLayers('checkLoader','','hide');
			
		} else if (http_request.modifier == 'su_u') { 
			document.getElementById('su_2').innerHTML = result;
			MM_showHideLayers('checkLoader','','hide');
			
		} else if (http_request.modifier == 'su_p') { 
			document.getElementById('su_3').innerHTML = result;
			MM_showHideLayers('checkLoader','','hide');
			
		} else if (http_request.modifier == 'su_e') { 
			document.getElementById('su_4').innerHTML = result;
			MM_showHideLayers('checkLoader','','hide');
			
		} else if (http_request.modifier == 'su_e2') { 
			document.getElementById('su_4').innerHTML = result;
			MM_showHideLayers('checkLoader','','hide');
			
		} else if (http_request.modifier == 'su_c') { 
			document.getElementById('su_5').innerHTML = result;
			MM_showHideLayers('checkLoader','','hide');
			
		} else if (http_request.modifier == 'su_ref') { 
			document.getElementById('su_6').innerHTML = result;
			MM_showHideLayers('checkLoader','','hide');
			
		} 
	 } else {
		alert('Oops, looks like you\'ve run into an error. Try what you were doing again.');
	 }
  }
}

function otf(type, number, obj) {
	
	if (type == "su_fn"){
		var poststr = "input=" + encodeURI( document.getElementById("su_fn").value ) + "&number=" + number;
		makePOSTRequest('bg-check.php', poststr, type);	
		
	} else if (type == "su_u"){
		var poststr = "input=" + encodeURI( document.getElementById("su_u").value ) + "&number=" + number;
		makePOSTRequest('bg-check.php', poststr, type);	
		
	} else if (type == "su_p"){
		var poststr = "input=" + encodeURI( document.getElementById("su_p").value ) + "&number=" + number;
		makePOSTRequest('bg-check.php', poststr, type);	
		
	} else if (type == "su_e"){
		var poststr = "input=" + encodeURI( document.getElementById("su_e").value ) + "&number=" + number;
		makePOSTRequest('bg-check.php', poststr, type);	
		
	} else if (type == "su_e2"){
		var poststr = "input=" + encodeURI( document.getElementById("su_e2").value ) + "&number=" + number;
		makePOSTRequest('bg-check.php', poststr, type);	
		
	} else if (type == "su_c"){
		var poststr = "input=" + encodeURI( document.getElementById("su_c").value ) + "&number=" + number;
		makePOSTRequest('bg-check.php', poststr, type);	
		
	} else if (type == "su_ref"){
		var poststr = "input=" + encodeURI( document.getElementById("su_ref").value ) + "&number=" + number;
		makePOSTRequest('bg-check.php', poststr, type);	
		
	} 
}