// cart.js
//var x;
var veneer;
var edge;
var cork;
var strap;
// preload images...
var matChoiceImgs = new Array();
var matChoiceSrcs = new Array();
matChoiceSrcs[0] = 'img/mat_choices/mat_00.jpg';
matChoiceSrcs[1] = 'img/mat_choices/mat_02.jpg';
matChoiceSrcs[2] = 'img/mat_choices/mat_10.jpg';
matChoiceSrcs[3] = 'img/mat_choices/mat_12.jpg';
matChoiceSrcs[4] = 'img/mat_choices/mat_20.jpg';
matChoiceSrcs[5] = 'img/mat_choices/mat_22.jpg';
for (var i = 0; i < matChoiceSrcs.length; i++) {
	matChoiceImgs[i] = new Image();
	matChoiceImgs[i].src = matChoiceSrcs[i];
}
var corkChoiceImgs = new Array();
var corkChoiceSrcs = new Array();
corkChoiceSrcs[0] = 'img/cork_choices/corkmat_0.jpg';
corkChoiceSrcs[1] = 'img/cork_choices/corkmat_1.jpg';
corkChoiceSrcs[2] = 'img/cork_choices/corkmat_2.jpg';
corkChoiceSrcs[3] = 'img/cork_choices/corkmat_3.jpg';
corkChoiceSrcs[4] = 'img/cork_choices/corkmat_4.jpg';
for (var i = 0; i < corkChoiceSrcs.length; i++) {
	corkChoiceImgs[i] = new Image();
	corkChoiceImgs[i].src = corkChoiceSrcs[i];
}
var strapChoiceImgs = new Array();
var strapChoiceSrcs = new Array();
strapChoiceSrcs[0] = 'img/strap_choices/strap_0.jpg';
strapChoiceSrcs[1] = 'img/strap_choices/strap_1.jpg';
strapChoiceSrcs[2] = 'img/strap_choices/strap_2.jpg';
for (var i = 0; i < strapChoiceSrcs.length; i++) {
	strapChoiceImgs[i] = new Image();
	strapChoiceImgs[i].src = strapChoiceSrcs[i];
}
function chgProdPic() {
	var prodPic = document.getElementById("product_img");
	var matChooserBtns = document.getElementsByName("os0");
	var edgChooserBtns = document.getElementsByName("os1");
	for(var x = 0 ; x < 3 ; x++) { // 0,2 are the mat choice buttons; 
		if (matChooserBtns[x].checked == true) {
			//alert(document.matChooser.os0[x].value);
			veneer = x.toString();
			break;
		//	alert(veneer);
		}
	}
	for(var x = 0 ; x < edgChooserBtns.length ; x++) {
		if (edgChooserBtns[x].checked == true) {
			//alert(document.matChooser.os1[x].value);
			edge = x.toString();
			break;
		//	alert(edge);
		}
	}
	if (!veneer) {
		alert ("Now choose a Korq Veneer.");
	}
	else if (!edge) {
		alert ("Now choose an Edge Binding.");
	}
	else {
		prodPic.src = "img/mat_choices/mat_" + veneer + edge + ".jpg";
	}
	document.matChooser.item_number.value = "1" + veneer + edge;
}

function chgCorkPic() {
	var corkPic = document.getElementById("cork_img");
	var corkChooserBtns = document.getElementsByName("os0");
	for(var x = 3; x < 8; x++) {// 3, 4, 5, 6, 7, are the cork choice buttons; 
		if (corkChooserBtns[x].checked == true) {
			cork = (x - 3).toString();
			break;
			//	alert(cork);
		}
	}
	corkPic.src = "img/cork_choices/corkmat_" + cork + ".jpg";
}
function chgStrapPic() {
	var strapPic = document.getElementById("strap_img");
	var strapChooserBtns = document.getElementsByName("os0");
	for(var x = 8; x < 11; x++) {// 8, 9, 10 are the strap choice buttons;
		if (strapChooserBtns[x].checked == true) {
			strap = (x - 8).toString();
			break;
			//	alert(strap);
		}
	}
	strapPic.src = "img/strap_choices/strap_" + strap + ".jpg";
}