$(document).ready(function(){

	    populateElement('#url', 'Enter your website url');
		

	});
    

function populateElement(selector, defvalue) {
    if($.trim($(selector).val()) == "") {
        $(selector).val(defvalue);
    }
  
    $(selector).focus(function() {
        if($(selector).val() == defvalue) {
            $(selector).val("");
        }
    });
    
    $(selector).blur(function() {
        if($.trim($(selector).val()) == "") {
            $(selector).val(defvalue);
        }
    });
 }

function getHTTPObject(){ 
	var xmlhttp; 
	if(window.XMLHttpRequest){ 
    	xmlhttp = new XMLHttpRequest(); 
	}else if (window.ActiveXObject){ 
		xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); 
	  	if (!xmlhttp){ 	
			xmlhttp=new ActiveXObject("Msxml2.XMLHTTP"); 
		} 
  } 
  return xmlhttp; 
}
// JavaScript Document

function key_code(event)
	{
		
		if(event.keyCode==13)
		{
			checkBacklinkSearch();
		}
	}

google_http='';
alexa_http='';

function getBacklink()
{

googleback_http=getHTTPObject();
alexa_http=getHTTPObject();


urlValue=document.getElementById("backurl").value;

if(urlValue=="" || urlValue=="Enter your website url")
	{
	  alert('Please enter website url.');
	  return false
	}

var d=document.getElementById("mainbox");

			if(d.style.display=='none')
			{
						$(d).show("slow");
						
			}
			else if(d.style.display=='block')
			{
						
						$(d).hide("slow");
						$(d).show("slow");
						
			}

document.getElementById('google_back').innerHTML='Loading..<img src="images/loading.gif" alt="" />';
document.getElementById('alexa_back').innerHTML='Loading..<img src="images/loading.gif" alt="" />';

var params = "searchurl="+urlValue;

	urls="google_backlinks.php?"+params;
	
     googleback_http.open("GET",urls,true);
	 googleback_http.onreadystatechange=googleBack_result;
       googleback_http.send(params);

   urls="alexa_backlinks.php?"+params;

	alexa_http.open("GET",urls,true);
	alexa_http.onreadystatechange=alexaBack_result;
    alexa_http.send(params);

  document.getElementById('message').style.display='block'

}
function googleBack_result()
{
	
	if (googleback_http.readyState==4)
	{ 
		var output=googleback_http.responseText;
	    document.getElementById('google_back').innerHTML= output;
	}
}
function alexaBack_result()
{
	
	if (alexa_http.readyState==4)
	{ 
		var output=alexa_http.responseText;
	    document.getElementById('alexa_back').innerHTML= output;
	}
}


check_http='';

//Function to search the Total search made on social activit page if it is less than 5 , then go head other wise stop

function checkBacklinkSearch()
{
	check_http=getHTTPObject();

	 urls="get_backlink_search.php";
	 
     check_http.open("GET",urls,true);
	 check_http.onreadystatechange=checkSearches;
	 check_http.send(null);
}
function checkSearches()
{
	
	if (check_http.readyState==4)
	{ 
		var output=check_http.responseText;
	     
		if(output.indexOf('ok')!=-1)
		{
            getBacklink();
		}
		else
		{
			 var d=document.getElementById("mainbox");

			if(d.style.display=='none')
			{
						$(d).show("slow");
						
			}
			else if(d.style.display=='block')
			{
						
						$(d).hide("slow");
						$(d).show("slow");
											   
			}
			 document.getElementById('message').style.display='block'
            document.getElementById("innerdiv").innerHTML='<table width="375" border="0" cellspacing="0" cellpadding="10" align="right"><tr><td valign=middle height=200 ><font color=#FF0000>Sorry, we can not allow more than 5 backlinks checking requests in a day to non-members. Please login or register to check your website`s backlinks unlimited number of times.</font></td></tr></table>';
		}

	}
}