function submenu(id){
	for (i=1;i<=6;i++){
		var hide = document.getElementById('subcat'+i);
		hide.style.display = 'none';
	}
	var show = document.getElementById('subcat'+id);
	show.style.display = 'block';
}
function changepic(id,act){
	document.getElementById('big_pic').src='plugins/p164_shopping_cart/product_images/'+id;
	document.getElementById('light_big_pic').src='plugins/p164_shopping_cart/product_images/'+id;
	for (i=1;i<=5;i++){
		var tb = document.getElementById('tb'+i);
		tb.setAttribute("class","opacity");
		tb.setAttribute("className","opacity");
	}
	var tbactive = document.getElementById('tb'+act);
	tbactive.setAttribute('class','tb_active');
	tbactive.setAttribute('className','tb_active');
	

return; 
}
function closediv(){
	document.getElementById('light').style.display = 'none';
}
function opendiv(){
	document.getElementById('light').style.display = 'block';
}