var img = new Array();
var img2 = new Array();
var img3 = new Array();
var img4 = new Array();

var color = new Array();
color[1] = '#d1a3c7';
color[2] = '#bf90c6';
color[3] = '#9e79ba';
color[4] = '#8264ac';

function replaceBg (obj, i, stat) {
	var obj2 = document.getElementById('c'+i);
	if (stat == 0) {
		obj.style.background = 'url('+img2[i].src+') no-repeat 100% 0';
		obj2.style.background = '#0147b1 url('+img[i].src+') no-repeat';
	}
	else {
		obj.style.background = 'url('+img4[i].src+') no-repeat 100% 0';
		obj2.style.background = color[i] + ' url('+img3[i].src+') no-repeat';
	}
}

function preloadMain(root)
{
	for (var i=1; i<=4; i++)
	{
		img[i] = new Image();
		img[i].src = root + "i/block"+i+"_bg1_hover.gif";
		img2[i] = new Image();
		img2[i].src = root + "i/block"+i+"_bg2_hover.jpg";
		img3[i] = new Image();
		img3[i].src = root + "i/block"+i+"_bg1.gif";
		img4[i] = new Image();
		img4[i].src = root + "i/block"+i+"_bg2.jpg";
	}
}