/*
	
	pixels.js
	
	JavaScript functions for Pixel stuff
	
	vers 1.1 ajm 06/02/2006
	
*/

var irefs = new Array();
var height=width=boxsize=x2=y2=pcost=curr=-1;
var eid1=eid2=ict=selo=cbutt=clbutt='';
var isIE=(document.all) ? 1 : 0;
function initJS() {
	if (document.location.protocol=='https:') document.writeln('<script type="text/javascript" src="' + document.location.pathname.replace(/^\/([^\/]+)\/.*$/g, "/$1") + '/js/wz_jsgraphics.js"></script>');
	else document.writeln('<script type="text/javascript" src="/js/wz_jsgraphics.js"></script>');
}
initJS();

function zoomIn() {
	if (document.body && document.body.style && typeof document.body.style.zoom != "undefined") {
		if (document.body.style.zoom == "200%") document.body.style.zoom = "100%";
		else document.body.style.zoom = "200%";
	}
}

function writeZoomIn() {
	if (isIE) {
		document.writeln('<script language=JavaScript type=text/javascript>');
		document.writeln('document.ondblclick=zoomIn;');
		document.writeln('</script>');
		document.writeln('Double click to zoom in/out.');
	}
}

function setVars(h, w, b, e1, e2, ic, so, cb, clb, pc, scS, cd) {
	height=h; // Image Height
	width=w; // Image Width
	boxsize=b; // Square size
	eid1=e1; // First Square location
	eid2=e2; // Second Square location
	ict=ic; // Div that contains the image
	selo=so; // Div that contains the selection info
	cbutt=cb; // Continue Button
	clbutt=clb; // Clear Button
	pcost=pc; // Pixel Cost
	curr=cd; // Currency Dollars
	if (scS) {
		window.onload=function () {
			clearSelection();
		}
	}
}

function clearSelection() {
	while (irefs.length > 0) {
		ir=irefs.pop();
		ir.clear();
	}
	if (document.getElementById(eid1)) document.getElementById(eid1).value='';
	if (document.getElementById(eid2)) document.getElementById(eid2).value='';
	if (document.getElementById(selo)) {
		document.getElementById(selo).style.background='#ffffff';
		document.getElementById(selo).innerHTML='';
	}
	if (document.getElementById(cbutt)) document.getElementById(cbutt).disabled=true;
	if (document.getElementById(clbutt)) document.getElementById(clbutt).disabled=true;
}

function purchaseSQ(x , y) {
	x1=(x * boxsize) - (boxsize - 1);
	y1=(y * boxsize) - (boxsize - 1);
	if (document.getElementById(eid1).value == '') {
		document.getElementById(eid1).value=x + '|' + y;
		x2=x1;
		y2=y1;
		ir = new jsGraphics(ict);
		ir.setColor("#0000ff");
		ir.fillRect(x1, y1, boxsize, boxsize);
		ir.paint();
		irefs.push(ir);
		document.getElementById(clbutt).disabled=false;
		document.getElementById(cbutt).disabled=false;
		document.getElementById(selo).style.background='#646464';
		document.getElementById(selo).innerHTML='You selected square ' + (((y - 1) * (height / boxsize)) + x) + '.';
	}else{
		if (document.getElementById(eid2).value == '') {
			document.getElementById(eid2).value=x + '|' + y;
			if (x2>x1) {
				x=x1;
				ww=x2 - x1;
			}else{
				x=x2;
				ww=x1 - x2;
			}
			if (y2>y1) {
				y=y1;
				hh=y2 - y1;
			}else{
				y=y2;
				hh=y1 - y2;
			}
			ir = new jsGraphics(ict);
			ir.setColor("#0000ff");
			ir.fillRect(x, y, ww + boxsize, hh + boxsize);
			ir.paint();
			irefs.push(ir);
			www=((ww / boxsize)+1);
			hhh=((hh / boxsize)+1);
			document.getElementById(selo).style.background='#646464';
			document.getElementById(selo).innerHTML='You selected ' + www + ' x ' + hhh + ' = ' + (www * hhh) + ' squares.<br>At a cost of £' + ((www * hhh) * pcost).toFixed(2) + '.' + ((curr) ? '<br>(Approx $' + (((www * hhh) * pcost) * curr).toFixed(2) + ')' : '');
		}
	}
}