// JavaScript Document
function prevMenuItem(id) {
	
	var prevDiv=document.getElementById('preview');
	switch (id){
		case 1:		
			prevDiv.style.background = "url(design/images/prev_laos.jpg)";
			break;
		case 2:
			prevDiv.style.background = "url(design/images/prev_guidebook.jpg)";
			break;
		case 3:
			prevDiv.style.background = "url(design/images/prev_courses.jpg)";
			break;
		case 4:		
			prevDiv.style.background = "url(design/images/prev_stay.jpg)";
			break;
		case 5:
			prevDiv.style.background = "url(design/images/prev_pictures.jpg)";
			break;
		case 6:
			prevDiv.style.background = "url(design/images/prev_contact.jpg)";
			break;
		
	}
}
function prevActiveMenuItem(active) {
	var prevDiv=document.getElementById('preview');
	prevDiv.style.background = "url(design/images/prev_"+active+".jpg)";
}