function fire(theID,url,vars){
	var xmlHttp;
	try{
		// Firefox, Opera 8.0+, Safari
		xmlHttp=new XMLHttpRequest();
	}catch (e){
		// Internet Explorer
		try{
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		}catch(e){
			try{
				xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
			}catch(e){
				alert("Your browser does not support AJAX!");
				return false;
			}
		}
	}
	xmlHttp.onreadystatechange=function(){
		if(xmlHttp.readyState==4){
			document.getElementById(theID).innerHTML=xmlHttp.responseText;
		}
	}
	xmlHttp.open("GET",url + "?" + vars,true);
	xmlHttp.send(null);
	//alert(vars);
}

function fragmentUrl(fragment){
	return "../inc/phpfiles/fragments/" + fragment + ".php?";
}

function fireVehicle(combo,change,year,make,model,series,badge,trans,body){
	var vars = '&year='+year+'&make='+make+'&model='+model+'&series='+series+'&badge='+badge+'&trans='+trans+'&body='+body;
	var url = "../inc/phpfiles/fragments/" + change + ".php?";
	var theID = change;

	if(combo == 'year'){
		fire('model',"../inc/phpfiles/fragments/model.php?",'');
		fire('series',"../inc/phpfiles/fragments/series.php?",'');
		fire('badge',"../inc/phpfiles/fragments/badge.php?",'');
		fire('trans',"../inc/phpfiles/fragments/trans.php?",'');
		fire('body',"../inc/phpfiles/fragments/body.php?",'');
	}
	if(combo == 'make'){
		fire('series',"../inc/phpfiles/fragments/series.php?",'');
		fire('badge',"../inc/phpfiles/fragments/badge.php?",'');
		fire('trans',"../inc/phpfiles/fragments/trans.php?",'');
		fire('body',"../inc/phpfiles/fragments/body.php?",'');
	}
	if(combo == 'model'){
		fire('badge',"../inc/phpfiles/fragments/badge.php?",'');
		fire('trans',"../inc/phpfiles/fragments/trans.php?",'');
		fire('body',"../inc/phpfiles/fragments/body.php?",'');
	}
	if(combo == 'series'){
		fire('trans',"../inc/phpfiles/fragments/trans.php?",'');
		fire('body',"../inc/phpfiles/fragments/body.php?",'');
	}
	if(combo == 'badge'){
		fire('body',"../inc/phpfiles/fragments/body.php?",'');
	}
	fire(theID,url,vars);

}

function timeLine(theID,theHref){
	if(theHref)theHref.href = 'javascript:void(0)';
	fire('marketAnalysis','../inc/phpfiles/market-analysis.php','timeLine='+theID);
}

function competitorComparison(theID,theHref){
	if(theHref)theHref.href = 'javascript:void(0)';
	fire('competitorComparison','../inc/phpfiles/graphs/competitor-snapshot.php','competitorComparison='+theID);
}

function compareVehicle(vehID,vehID1){
	if(vehID1){
		var vehID2 = vehID1;
	}else{
		var vehID2 = '';
	}
	var arrayPageSize = getPageSize();
	var arrayPageScroll = getPageScroll();
	var vehBoxTop = arrayPageScroll[1] + ((arrayPageSize[3] - 500) / 2);

	$('outerLB').style.height = arrayPageSize[1] + "px";
	$('innerLB').style.top = (vehBoxTop < 0) ? "10px" : vehBoxTop + "px";
	toggle('outerLB');
	toggle('innerLB');
	fire('innerLB','/inc/phpfiles/vehicle-details.php?','&vehID='+vehID+'&vehID2='+vehID2)
}

//get browser height for lightbox
function getPageScroll(){
	var yScroll;

	if (self.pageYOffset) {
		yScroll = self.pageYOffset;
	} else if (document.documentElement && document.documentElement.scrollTop){	 // Explorer 6 Strict
		yScroll = document.documentElement.scrollTop;
	} else if (document.body) {// all other Explorers
		yScroll = document.body.scrollTop;
	}

	arrayPageScroll = new Array('',yScroll) 
	return arrayPageScroll;
}
function getPageSize(){
	var xScroll, yScroll;
	if (window.innerHeight && window.scrollMaxY) {	
		xScroll = document.body.scrollWidth;
		yScroll = window.innerHeight + window.scrollMaxY;
	}else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	}else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}
	
	var windowWidth, windowHeight;
	if (self.innerHeight) {	// all except Explorer
		windowWidth = self.innerWidth;
		windowHeight = self.innerHeight;
	}else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	}else if (document.body) { // other Explorers
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}	
	// for small pages with total height less then height of the viewport
	if(yScroll < windowHeight){
		pageHeight = windowHeight;
	}else { 
		pageHeight = yScroll;
	}
	// for small pages with total width less then width of the viewport
	if(xScroll < windowWidth){	
		pageWidth = windowWidth;
	}else {
		pageWidth = xScroll;
	}
	arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) 
	return arrayPageSize;
}