var bwIcons = new Array() ;
for( var i = 1; i < 7; i++ ) {
	var nextImage = new Image() ;
	nextImage.src= "images/webgraphics/btn_bw" + i + ".png" ;
	bwIcons[i] = nextImage ;
}

var clrIcons = new Array() ;
for( var i = 1; i < 7; i++ ) {
	var nextImage = new Image() ;
	nextImage.src= "images/webgraphics/btn_clr" + i + ".png" ;
	clrIcons[i] = nextImage ;
}

function getColorIcon( e ) {
	var image = e.src ;
	var imgIndex = image.charAt( image.indexOf("bw") + 2 ) ;
	var newImage = clrIcons[imgIndex] ;
	e.src = newImage.src ;
	return ;
}

function getBwIcon( e ) {
	var image = e.src ;
	var imgIndex = image.charAt( image.indexOf("clr") + 3 ) ;
	var newImage = bwIcons[imgIndex] ;
	e.src = newImage.src ;
	return ;
}