var xmlHttp

function selectStyle(style_num)
{ 
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  } 
var url="main_page_ajax.php";
// url=url+"?q="+style;
url=url+"?style="+style_num;
url=url+"&page=1";
url=url+"&sid="+Math.random();
xmlHttp.onreadystatechange=stateChanged;
xmlHttp.open("GET",url,true);
xmlHttp.send(null);
}

function selectType(type_num)
{ 
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  } 
var url="main_page_ajax.php";
// url=url+"?q="+style;
url=url+"?type="+type_num;
url=url+"&page=1";
url=url+"&sid="+Math.random();
xmlHttp.onreadystatechange=stateChanged;
xmlHttp.open("GET",url,true);
xmlHttp.send(null);
}

function selectEvent(event_num)
{ 
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  } 
var url="main_page_ajax.php";
// url=url+"?q="+style;
url=url+"?event="+event_num;
url=url+"&page=1";
url=url+"&sid="+Math.random();
xmlHttp.onreadystatechange=stateChanged;
xmlHttp.open("GET",url,true);
xmlHttp.send(null);
}

function selectBPM(bpm_num)
{ 
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  } 
var url="main_page_ajax.php";
// url=url+"?q="+style;
url=url+"?bpm="+bpm_num;
url=url+"&page=1";
url=url+"&sid="+Math.random();
xmlHttp.onreadystatechange=stateChanged;
xmlHttp.open("GET",url,true);
xmlHttp.send(null);
}

function selectKeyword(text)
{ 
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  } 
var url="main_page_ajax.php";
// url=url+"?q="+style;
url=url+"?text_search="+text;
url=url+"&page=1";
url=url+"&sid="+Math.random();
xmlHttp.onreadystatechange=stateChanged;
xmlHttp.open("GET",url,true);
xmlHttp.send(null);
}

function selectOffset(page_num,label_str)
// function selectOffset(page_num)
{ 
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  } 
var url="main_page_ajax.php";
// url=url+"?q="+style;
// url=url+"?text_search="+text;
// url=url+"&page="+page_num+label_str;

url = url+"?page="+page_num+""+label_str;


url=url+"&sid="+Math.random();
// alert("This is it!");
xmlHttp.onreadystatechange=stateChanged;
xmlHttp.open("GET",url,true);
xmlHttp.send(null);
}

function selectTest(num,num2)
{
// var str="From func ";
str=num; 
str = "&page="+str+""+num2;
 alert(str);
}

function stateChanged() 
{ 
if (xmlHttp.readyState==4)
{ 
document.getElementById("txtHint").innerHTML=xmlHttp.responseText;
}
}

function GetXmlHttpObject()
{
var xmlHttp=null;
try
  {
  // Firefox, Opera 8.0+, Safari
  xmlHttp=new XMLHttpRequest();
  }
catch (e)
  {
  // Internet Explorer
  try
    {
    xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
    }
  catch (e)
    {
    xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
  }
return xmlHttp;
}