var img = new Array();

function swapimg(i, j) {
	document.getElementById('num_0'+i).src = img[i][j].src;
}


function preLoad() {
	var imax = arguments.length;
	var i, j, k;
	
	for(i=0; i < imax; i++) {
		j = Math.floor(i/2)+1;
		k = i%2;
		
		if(k == 0) {
			img[j]			= new Array();
		}
		
		img[j][k]		= new Image();
		img[j][k].src	= arguments[i];
	}
}

preLoad('i/pnum_01.gif', 'i/pnum_01_filled.gif', 'i/pnum_02.gif', 'i/pnum_02_filled.gif', 'i/pnum_03.gif', 'i/pnum_03_filled.gif', 'i/pnum_04.gif', 'i/pnum_04_filled.gif', 'i/pnum_05.gif', 'i/pnum_05_filled.gif');