var xmlHttp

var boxID

function selectCatagory(str)
{ 
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
 {
 alert ("Browser does not support HTTP Request")
 return
 }

var url="/functions/pictsdisp.php"
url=url+"?function=catagory&catagory="+str
url=url+"&sid="+Math.random()
xmlHttp.onreadystatechange=stateChanged 
xmlHttp.open("POST",url,true)
xmlHttp.send(null)
}






function myThumbSelect(str)
{ 
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
 {
 alert ("Browser does not support HTTP Request")
 return
 }

var url="/functions/pictsdisp.php"
url=url+"?function=thumbSelect&thumb="+str
url=url+"&sid="+Math.random()
xmlHttp.onreadystatechange=stateChanged 
xmlHttp.open("POST",url,true)
xmlHttp.send(null)
}





function pictsPerPage(str)
{ 
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
 {
 alert ("Browser does not support HTTP Request")
 return
 }

var url="/functions/pictsdisp.php"
url=url+"?function=pictsPerPage"
url=url+"&ppp="+str
url=url+"&sid="+Math.random()
xmlHttp.onreadystatechange=stateChanged 
xmlHttp.open("POST",url,true)
xmlHttp.send(null)
}





function fnCarSelect(str)
{ 
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
 {
 alert ("Browser does not support HTTP Request")
 return
 }
var carPick=document.getElementById("carName").value
var sortBy=document.getElementById("sortBy").value
var timeframe=document.getElementById("timeframe").value

var url="/functions/car-functions.php"
url=url+"?function=bothColumns"
url=url+"&car="+carPick
url=url+"&sortBy="+sortBy
url=url+"&timeframe="+timeframe
url=url+"&sid="+Math.random()
xmlHttp.onreadystatechange=stateChanged 
xmlHttp.open("POST",url,true)
xmlHttp.send(null)
}





function fnCarAddEntry()
{ 
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
 {
 alert ("Browser does not support HTTP Request")
 return
 }
var carCar=document.getElementById("car").value
var carDate=document.getElementById("date").value
var carMiles=document.getElementById("miles").value
var carGallons=document.getElementById("gallons").value
var carDolGal=document.getElementById("dolgal").value
var error = "";
if (carMiles == "" || carGallons == "" || carDolGal == ""){
	error = "a required field has not been filled in\n";
	alert(error)
} else {
	var url="/functions/car-functions.php"
	url=url+"?function=addEntry"
	url=url+"&car="+carCar
	url=url+"&date="+carDate
	url=url+"&miles="+carMiles
	url=url+"&gallons="+carGallons
	url=url+"&dolgal="+carDolGal
	url=url+"&sid="+Math.random()
	xmlHttp.onreadystatechange=stateChanged 
	xmlHttp.open("POST",url,true)
	xmlHttp.send(null)
}
}





function fnLogOutAddEntry()
{ 
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
 {
 alert ("Browser does not support HTTP Request")
 return
 }
var url="/functions/car-functions.php"
url=url+"?function=logout"
url=url+"&sid="+Math.random()
xmlHttp.onreadystatechange=stateChangedAddEntry 
xmlHttp.open("POST",url,true)
xmlHttp.send(null)
}





function fnDispFormAddEntry()
{ 
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
 {
 alert ("Browser does not support HTTP Request")
 return
 }
var url="/functions/car-functions.php"
url=url+"?function=showAddEntry"
url=url+"&sid="+Math.random()
xmlHttp.onreadystatechange=stateChangedAddEntry 
xmlHttp.open("POST",url,true)
xmlHttp.send(null)
}























function stateChanged() 
{ 
//alert (boxID);
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
 { 
 document.getElementById("bothColumns").innerHTML=xmlHttp.responseText 
 } 
}

function stateChangedAddEntry() 
{ 
//alert (boxID);
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
 { 
 document.getElementById("divAddEntry").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;
}