function clearform(which){
	if (which.value=="Логин")
	which.value=''
	if (which.value=="Пароль")
	which.value=''
}

var i=0;
var timer;
var images=['01.jpg','02.jpg','03.jpg','04.jpg'];
function play(){
    timer=setInterval(f,10000);
}
function f(){
	document.getElementById("wmaxtbl").style.backgroundImage = 'url(/design/'+images[(i=(i==3?0:i+1))]+')';

}