var http_request = false;
   var script_url="http://kolkata.net/info.php";
   function makeRequest(url, parameters) {
      http_request = false;
      if (window.XMLHttpRequest) { // Mozilla, Safari,...
         http_request = new XMLHttpRequest();
         if (http_request.overrideMimeType) {
            http_request.overrideMimeType('text/xml');
         }
      } 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('GET', url + parameters, true);
      //http_request.send(null);
	  http_request.send();
   }

   function makePOSTRequest(url, parameters) {
      http_request = false;
      if (window.XMLHttpRequest) { // Mozilla, Safari,...
         http_request = new XMLHttpRequest();
         if (http_request.overrideMimeType) {
            http_request.overrideMimeType('text/xml');
         }
      } 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, 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);
            result = http_request.responseText;
            document.getElementById('info').innerHTML = "";
			document.getElementById('info').innerHTML =	result;            
         } else {
            alert('There was a problem with the request.');
         }
      }
   }
   /*
   function get(obj) {
      var getstr = "?";
      for (i=0; i<obj.childNodes.length; i++) {
         if (obj.childNodes[i].tagName == "INPUT") {
            if (obj.childNodes[i].type == "text") {
               getstr += obj.childNodes[i].name + "=" + obj.childNodes[i].value + "&";
            }
            if (obj.childNodes[i].type == "checkbox") {
               if (obj.childNodes[i].checked) {
                  getstr += obj.childNodes[i].name + "=" + obj.childNodes[i].value + "&";
               } else {
                  getstr += obj.childNodes[i].name + "=&";
               }
            }
            if (obj.childNodes[i].type == "radio") {
               if (obj.childNodes[i].checked) {
                  getstr += obj.childNodes[i].name + "=" + obj.childNodes[i].value + "&";
               }
            }
         }   
         if (obj.childNodes[i].tagName == "SELECT") {
            var sel = obj.childNodes[i];
            getstr += sel.name + "=" + sel.options[sel.selectedIndex].value + "&";
         }
		 //alert(getstr);
         
      }*/

	  function get(obj) {
		  var poststr = "";
		  for (i=0; i<obj.childNodes.length; i++) {
         if (obj.childNodes[i].tagName == "INPUT") {
            if (obj.childNodes[i].type == "text") {
               poststr += obj.childNodes[i].name + "=" + encodeURI(obj.childNodes[i].value) + "&";
            }
            if (obj.childNodes[i].type == "checkbox") {
               if (obj.childNodes[i].checked) {
                  poststr += obj.childNodes[i].name + "=" + encodeURI(obj.childNodes[i].value) + "&";
               } else {
                  poststr += obj.childNodes[i].name + "=&";
               }
            }
            if (obj.childNodes[i].type == "radio") {
               if (obj.childNodes[i].checked) {
                  poststr += obj.childNodes[i].name + "=" + encodeURI(obj.childNodes[i].value) + "&";
               }
            }
         }   
         if (obj.childNodes[i].tagName == "SELECT") {
            var sel = obj.childNodes[i];
            getstr += sel.name + "=" + encodeURI(sel.options[sel.selectedIndex].value) + "&";
         }		  
		  makePOSTRequest('post.php', poststr);
	   }
      //get
	  paramarr= param.split("/")
	  getstr="?catid="+paramarr[1]+"&start="+paramarr[0];
	  makeRequest('http://kolkata.net/info.php', getstr);
	  //makePOSTRequest('http://kolkata.loc/info.php', poststr);
   }

   function getPage(param){
		var getstr = "";
		paramarr= param.split("|")
		getstr="?catid="+paramarr[1]+"&start="+paramarr[0];
		
		//makeRequest('http://kolkata.loc/info.php', getstr);
		makeRequest(script_url, getstr);

   }

function showpage(page){
		alert(page);
		var pid="inf"+page;
		var obj=document.getElementById('info');
		alert(obj.childNodes.length);
		for (i=0; i<obj.childNodes.length; i++) {
			obj.childNodes[i].style.display="none";
			alert(obj.childNodes[i].id);
		}
		document.getElementById(pid).style.display="block";
}