var mamsam_sg_current_thumb_id = 0;
function init_gallery(id){
	mamsam_sg_current_thumb_id = id;
}
function switch_image(to_id,extra_switch){
	//active object -> inactive
	document.getElementById("mamsam_sg_mini_thumb_"+mamsam_sg_current_thumb_id).className = "tx-mamsam-pi1-sg-mini-thumb";
	document.getElementById("mamsam_sg_maxi_thumb_"+mamsam_sg_current_thumb_id).className = "tx-mamsam-pi1-sg-maxi-thumb";
	//clicked object -> active
	document.getElementById("mamsam_sg_mini_thumb_"+to_id).className = "tx-mamsam-pi1-sg-mini-thumb-act";
	document.getElementById("mamsam_sg_maxi_thumb_"+to_id).className = "tx-mamsam-pi1-sg-maxi-thumb-act";
	//extra switch
	extra_switches(extra_switch);
	//save switch
	mamsam_sg_current_thumb_id = to_id;
}

function extra_switches(extra_switch){
	for (key in extra_switch){
		var item_to_switch = document.getElementById("mamsam_sg_switch_"+key);
		if(item_to_switch){
			item_to_switch.innerHTML = extra_switch[key];
		}
	}
}