/*Just a note, I normally do my function brackets on separate lines while I do my ifs/fors/whiles with the first bracket on the same line. Just to clarify so you don't think I'm cheating (I've done this before if you look at my past work). */

var cart=new Array();
var prices=new Array();
var quantity=new Array();

function changeCat(cat)
{
	if(cat=='shoppingcart' && document.getElementById('shoppingcart').innerHTML==""){
		alert("Nothing in cart!");
	}
	else if(cat=='shoppingcart' && document.getElementById('shoppingcart').innerHTML=="Nothing here, go away."){
		alert("Nothing in cart!");
	}
	else{
	document.getElementById('action').style.display="none";
	document.getElementById('fps').style.display="none";
	document.getElementById('rpg').style.display="none";
	document.getElementById('rts').style.display="none";
	document.getElementById('shoppingcart').style.display="none";
	document.getElementById(cat).style.display="block";
	}
}

function addCart(product, setPrice)
{
	var num=prompt("Please enter a quantity");
	num=parseInt(num);
	if (num==""){
		alert("Please enter a quantity!");
	}
	else if(num==null){
		//DO NOTHING
	}
	else{
		var isfound=false;
		for (var i=0; i<cart.length; i++){
			if (cart[i]==product.id){
				isfound=true;
			}
		}

		if (isfound){
			alert("Product already in cart!");
		}
		else{
			cart.push(product.id);
			prices.push(setPrice*num);
			quantity.push(num);
			calculate();
		}

	}

}

function remove(product)
{
	cart[product.title]="";
	prices[product.title]="";
	quantity[product.title]="";
	calculate();
	if (document.getElementById("shoppingcart").innerHTML==""){
		document.getElementById("shoppingcart").innerHTML="Nothing here, go away.";
	}
}

function calculate()
{
	document.getElementById("shoppingcart").innerHTML="";

	for (product in cart){
		var title=cart[product];
		var src="";

		if (title!=""){
			if (title=="ac"){
				title="Assassin's Creed";
				src="ac";
			}
			else if (title=="batman"){
				title="BM: Arkham Asylum";
				src="batman";
			}
			else if (title=="bf2"){
				title="SW: Battlefront 2";
				src="bf2";
			}
			else if (title=="gta4"){
				title="Grand Theft Auto IV";
				src="gta4";
			}
			else if (title=="lanoire"){
				title="L.A. Noire";
				src="lanoire";
			}
			else if (title=="rdr"){
				title="Red Dead Redemption";
				src="rdr";
			}
			else if (title=="rfg"){
				title="Red Faction Guerrilla";
				src="rfg";
			}
			else if (title=="saboteur"){
				title="The Saboteur";
				src="saboteur";
			}
			else if (title=="sr3"){
				title="Saints Row: The Third";
				src="sr3";
			}
			else if (title=="tombraider"){
				title="TR: Anniversary";
				src="tombraider";
			}
			else if (title=="bc2"){
				title="BF: Bad Company 2";
				src="bc2";
			}
			else if (title=="bf3"){
				title="Battlefield 3";
				src="bf3";
			}
			else if (title=="cod4"){
				title="Call of Duty 4";
				src="cod4";
			}
			else if (title=="crysis"){
				title="Crysis";
				src="crysis";
			}
			else if (title=="deadisland"){
				title="Dead Island";
				src="deadisland";
			}
			else if (title=="fc2"){
				title="Far Cry 2";
				src="fc2";
			}
			else if (title=="hl2"){
				title="Half Life 2";
				src="hl2";
			}
			else if (title=="l4d"){
				title="Left 4 Dead";
				src="l4d";
			}
			else if (title=="metro"){
				title="Metro 2033";
				src="metro";
			}
			else if (title=="ro2"){
				title="Red Orchestra 2";
				src="ro2";
			}
			else if (title=="dao"){
				title="Dragon Age Origins";
				src="dao";
			}
			else if (title=="dxhr"){
				title="DX: Human Revolution";
				src="dxhr";
			}
			else if (title=="eve"){
				title="EVE Online";
				src="eve";
			}
			else if (title=="fallout3"){
				title="Fallout 3";
				src="fallout3";
			}
			else if (title=="kotor"){
				title="SW: KOTOR";
				src="kotor";
			}
			else if (title=="me"){
				title="Mass Effect";
				src="me";
			}
			else if (title=="oblivion"){
				title="TESIV: Oblivion";
				src="oblivion";
			}
			else if (title=="skyrim"){
				title="TESV: Skyrim";
				src="skyrim";
			}
			else if (title=="witcher2"){
				title="Witcher 2";
				src="witcher2";
			}
			else if (title=="x3"){
				title="X3: Terran Conflict";
				src="x3";
			}
			else if (title=="ao3"){
				title="Age of Empires III";
				src="aoe3";
			}
			else if (title=="aom"){
				title="Age of Mythology";
				src="aom";
			}
			else if (title=="coh"){
				title="Company of Heroes";
				src="coh";
			}
			else if (title=="dow2"){
				title="Dawn of War II";
				src="dow2";
			}
			else if (title=="medieval2"){
				title="Medieval II: Total War";
				src="medieval2";
			}
			else if (title=="mow"){
				title="Men of War";
				src="mow";
			}
			else if (title=="ra3"){
				title="C&C: Red Alert 3";
				src="ra3";
			}
			else if (title=="ron"){
				title="Rise of Nations: Gold";
				src="ron";
			}
			else if (title=="sc2"){
				title="Starcraft II";
				src="sc2";
			}
			else if (title=="shogun2"){
				title="Total War: Shogun 2";
				src="shogun2";
			}


			/*document.getElementById('shoppingcart').innerHTML=document.getElementById('shoppingcart').innerHTML+"<p>"+title+" ("+quantity[product]+") - $"+prices[product]+" <span title='"+product+"'class='remove' onclick='remove(this)'>[X]</span></p>";*/
			document.getElementById("shoppingcart").innerHTML=document.getElementById("shoppingcart").innerHTML+"<span class='carttd'><img class='cart' src='images/"+src+".jpg'>"+title+"<p>Quantity: "+quantity[product]+"</p><p>Price: $"+prices[product]+"</p><p><span title='"+product+"'class='remove' onclick='remove(this)'>[Remove from cart]</span></p></span>";
		}
	}
}