var pic = new Array();

pic[0] = new Image();
pic[1] = new Image();
pic[2] = new Image();
pic[3] = new Image();
pic[4] = new Image();
pic[5] = new Image();
pic[6] = new Image();
pic[7] = new Image();
pic[8] = new Image();
pic[9] = new Image();
pic[10] = new Image();
pic[11] = new Image();

pic[0].src = "images/top_menu/menu1_1.gif";
pic[1].src = "images/top_menu/menu1_2.gif";
pic[2].src = "images/top_menu/menu2_1.gif";
pic[3].src = "images/top_menu/menu2_2.gif";
pic[4].src = "images/top_menu/menu3_1.gif";
pic[5].src = "images/top_menu/menu3_2.gif";
pic[6].src = "images/top_menu/menu4_1.gif";
pic[7].src = "images/top_menu/menu4_2.gif";
pic[8].src = "images/top_menu/menu5_1.gif";
pic[9].src = "images/top_menu/menu5_2.gif";
pic[10].src = "images/top_menu/menu6_1.gif";
pic[11].src = "images/top_menu/menu6_2.gif";

function setRollOverImg(index, obj){
	obj.src = pic[index].src;
}