var strt = "<img src=\"images/main/";
var end = ".jpg\" border=\"0\" >";
var img = "";

function generateRandom(){
	img = Math.floor(Math.random()*5);
}

function addFirst(){
	generateRandom();
	document.write(strt+img+end);		
}

function addNext(num){
	document.write(strt+img+"/h_"+num+end);		
}