var objArray = [];

objArray.push("images/menu_on.png","images/soudanbuttonON.png","images/taikenbuttonON.png","images/shidoupdf_download_ON.png","images/send_ON.png" );

window.onload = function() {
	document.getElementById("underSwapImgBox").style.visibility = "visible";
	PREIMG = new Array();
	for(i=0; i<=objArray.length; i++){
		PREIMG[i]  = new Image();
		PREIMG[i].src  = objArray[i];
	}//end_for
	document.getElementById("underSwapImgBox").style.visibility = "hidden";
}