// initialise variables and stuff
var colours = new Array("red", "yellow", "green", "red", "yellow", "green")

var mdArray = new Array()
for (i=0; i<4; i++) {
	mdArray[i] = new Array()
}

function count() {
	var points = 0
	for (r=0; r<4; r++) {
		for (c=0; c<4; c++) {
			var existColour = eval("document.b" + r + c).src
			var filePath = existColour.split("/")
			existColour = filePath[filePath.length-1]
			if (existColour == "red.gif") {
				points--
			} else {
				if (existColour == "green.gif") {
					points++
				}
			} // end if
		} // end for
	} // end for
	document.pointsgain.points.value = points
	var gain = 0.274 + (points*0.002) + (points*0.001)
	switch (points) {
	case 14:
		gain = gain * 1.1
	break;
	case 15:
		gain = gain * 1.2
	break;
	case 16:
		gain = gain * 1.4
	break;
	}
	document.pointsgain.gain.value = gain
} // end count()

function randomise() {
	for (r=0; r<4; r++) {
		for (c=0; c<4; c++) {
			currColourNumber = Math.round(Math.random()*5)
			eval("document.b" + r + c).src = colours[currColourNumber] + ".gif"
		} // end for
	} // end for
	count()
} // end randomise

randomise()

function doCol(column) {
	for (r=0; r<4; r++) {
		var existColour = eval("document.b" + r + column).src
		var filePath = existColour.split("/")
		existColour = filePath[filePath.length-1]
		
		if (existColour == "yellow.gif") {
			eval("document.b" + r + column).src= "green.gif"
		} else {
			if (existColour == "green.gif") {
				eval("document.b" + r + column).src= "red.gif"
			} else {
				eval("document.b" + r + column).src= "yellow.gif"
			} // end GREEN OR RED
		} // end YELLOW OR ELSE
	} // end for
	count()
} // end doCol

function doRow(row) {
	for (c=0; c<4; c++) {
		var existColour = eval("document.b" + row + c).src
		var filePath = existColour.split("/")
		existColour = filePath[filePath.length-1]
		
		if (existColour == "yellow.gif") {
			eval("document.b" + row + c).src= "green.gif"
		} else {
			if (existColour == "green.gif") {
				eval("document.b" + row + c).src= "red.gif"
			} else {
				eval("document.b" + row + c).src= "yellow.gif"
			} // end GREEN OR RED
		} // end YELLOW OR ELSE
	} // end for
	count()
} // end doRow

function train(whichStat) {
	count()
	var gain = parseFloat(document.pointsgain.gain.value)
	window.location.href="index.html?whichstat=" + whichStat + "&gain=" + gain
} // end train