function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		iPla_over = newImage("images/index/iPla2.jpg");
		iIns_over = newImage("images/index/iIns2.jpg");
		iTel_over = newImage("images/index/iTel2.jpg");
		iSer_over = newImage("images/index/iSer2.jpg");
		mP_iSer_over = newImage("images/index/mPiSer2.jpg");
		mP_iServ_over = newImage("images/index/mPiServ2.jpg");
		mP_iEnq_over = newImage("images/index/mPiEnq2.jpg");
		mP_iTel_over = newImage("images/index/mPiTel2.jpg");
		mP_iPla_over = newImage("images/index/mPiPla2.jpg");
		iSpe_over = newImage("images/index/iSpe2.jpg");
		iServ_over = newImage("images/index/iServ2.jpg");
		iEnq_over = newImage("images/index/iEnq2.jpg");
		iCon_over = newImage("images/index/iCon2.jpg");
		preloadFlag = true;
	}
}