pics = new Array();
pics[0] = ("../images/design_05.jpg");
pics[1] = ("../images/design_05_2.jpg");
pics[2] = ("../images/design_05_3.jpg");
pics[3] = ("../images/design_05_4.jpg");
pics[4] = ("../images/design_05_5.jpg");
pics[5] = ("../images/design_05_6.jpg");
var rnd = Math.random();
rnd = Math.ceil(rnd*pics.length-1);
document.write('<img src="',pics[rnd],'">');