if (document.images)
{SrcArr = new Array ("main_menu1","main_menu2","main_menu3","main_menu4","main_menu5");
	ImgArr = new Array ();
	for (i in SrcArr)
	{
		ImgArr[i] = new Image ();
		ImgArr[i].src ="img/" + SrcArr[i] + "_.gif";
	}
}