var img_rnd = new Array ("http://www.dabirifoundation.org/images/header2_1.jpg","http://www.dabirifoundation.org/images/header2_2.jpg","http://www.dabirifoundation.org/images/header2_3.jpg","http://www.dabirifoundation.org/images/header2_4.jpg","http://www.dabirifoundation.org/images/header2_5.jpg","http://www.dabirifoundation.org/images/header2_6.jpg");
var i = Math.round(5*Math.random());

document.write('<IMG SRC="' + img_rnd[i] + '">');