jmp = new Array();
img = new Array();
jmp[0] = "";
jmp[1] = "";
jmp[2] = "";
jmp[3] = "";
jmp[4] = "";
jmp[5] = "";
jmp[6] = "";
img[0] = "images/top_01.jpg";
img[1] = "images/top_02.jpg";
img[2] = "images/top_03.jpg";
img[3] = "images/top_04.jpg";
img[4] = "images/top_05.jpg";
img[5] = "images/top_06.jpg";
img[6] = "images/top_07.jpg";
n = Math.floor(Math.random()*jmp.length);
document.write("<img src='"+img[n]+"' border='0' >");