function displayImage(id) {
	if(id==1) {
		dojo.style('images1','display','block');
		dojo.style('images2','display','none');
		dojo.style('images3','display','none');
		dojo.style('images4','display','none');
	}
	if(id==2) {
		dojo.style('images1','display','none');
		dojo.style('images2','display','block');
		dojo.style('images3','display','none');
		dojo.style('images4','display','none');
	}
	if(id==3) {
		dojo.style('images1','display','none');
		dojo.style('images2','display','none');
		dojo.style('images3','display','block');
		dojo.style('images4','display','none');
	}
	if(id==4) {
		dojo.style('images1','display','none');
		dojo.style('images2','display','none');
		dojo.style('images3','display','none');
		dojo.style('images4','display','block');
	}
}


function Animation(id) { 
	if (stop) return;
	i = id;
	if (i > 4) i = 1;
	displayImage(i);
	i++;
	setTimeout("doAnimation(2);",0);
	k=setTimeout("doAnimation(1);",2700);
	j=setTimeout("Animation(i)",3000);
}


function Next(id) { 
	if (stop) return;
	i = id;
	if (i > 4) i = 1; 
	displayImage(i);
	i++;
	setTimeout("doAnimation(2);",0);
	k=setTimeout("doAnimation(1);",2700);
	j=setTimeout("Animation(i)",3000);
}


function Previous(id) { 
	if (stop) return;
	i = id;
	i = i-2;
	if (i == 0) i = 4; 
	displayImage(i);
	i++;
	setTimeout("doAnimation(2);",0);
	k=setTimeout("doAnimation(1);",2700);
	j=setTimeout("Animation(i)",3000);
}
	

function AnimationStop(){
	clearTimeout(j);
	clearTimeout(k);
}