var xmlHttp;

function callAjax(params,mode)
{ 
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null)
	 {
		 alert ("Browser does not support HTTP Request");
		 return;
	 }
	switch(mode){ 
		case "adminShowSlots":
			paramsArr=params.split('~~');
			var url="get_slot.php";
			url=url+"?month="+paramsArr[0];
			url=url+"&year="+paramsArr[1];
			xmlHttp.onreadystatechange=stateChanged;
			xmlHttp.open("GET",url,true);
			xmlHttp.send(null);
		break;
		case "adminChangeSlots":
			paramsArr=params.split('~~');
			var url="change_slot.php";
			url=url+"?dt="+paramsArr[0];
			url=url+"&id="+paramsArr[1];
			url=url+"&mode="+paramsArr[2];
			xmlHttp.onreadystatechange=bookChanged;
			xmlHttp.open("GET",url,true);
			xmlHttp.send(null);
		break;
		case "showMyTime":
			paramsArr=params.split('~~');
			var url="get_mytime.php";
			url=url+"?timezone="+paramsArr[0];
			url=url+"&time="+paramsArr[1];
			xmlHttp.onreadystatechange=showTimezoneTime;
			xmlHttp.open("GET",url,true);
			xmlHttp.send(null);
		break;
		case "bookMyTime":
			var url="book_mytime.php";
			url=url+"?dbdata="+params;
			xmlHttp.onreadystatechange=showBookingForm;
			xmlHttp.open("GET",url,true);
			xmlHttp.send(null);
		break;
		case "orderPages":
			var url="../cat_page.php";
			url=url+"?cat="+params;
			xmlHttp.onreadystatechange=showcatpage;
			xmlHttp.open("GET",url,true);
			xmlHttp.send(null);
		break;

		}
}

function stateChanged() 
{ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	 { 
	 	document.getElementById('slotDisplayDiv').innerHTML=xmlHttp.responseText;
		setTimeout("appear('slotDisplayDiv')",500);
	 } 
}
function bookChanged() 
{
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	 { 
	 //	document.getElementById('slotDisplayDiv').innerHTML=xmlHttp.responseText;
	 //	setTimeout("appear('slotDisplayDiv')",500);
	 	showSlots();
	 } 
}

function showcatpage() 
{
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	 { 
	 	document.getElementById('catlistDiv').innerHTML=xmlHttp.responseText;
	 } 
}
function showTimezoneTime() 
{ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	 { 
	 	document.getElementById('myTime').innerHTML=xmlHttp.responseText;
	 	document.getElementById('myTime').style.backgroundColor="#FDF6E4";
	 	document.getElementById('myTime').style.border="1px solid #431110";
	 	document.getElementById('myTime').style.paddingLeft="2px";
	 } 
}
function showBookingForm() 
{ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	 { 
	 	//alert(xmlHttp.responseText);
	 	returnMsg=xmlHttp.responseText.split('~~');	
	 	if(returnMsg[0]=="success"){
	 		document.getElementById('get_bookedId').value=returnMsg[1];
	 		document.getElementById('slotBooking').submit();
	 		//	location.href="slotbookingform.html";
	 		}
	 	else{
	 			alert(returnMsg[1])
	 			location.href="slotbooking.html";
	 		}
	 } 
}

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;
}