function changeDispLayer(id){

	if(document.getElementById){
		layerStatus = document.getElementById(id).style.display;
		if (layerStatus == 'none'){
			document.getElementById(id).style.display = 'block';
		}else{
			document.getElementById(id).style.display = 'none';
		}
	}
}


function dispNextListEntry(max_num){

	var current_id = '';
	var count = 0;

	for (i=0; i<max_num; i++){
		id = i + 1;
		var element = document.getElementById("entry_" + id);

		if (current_id == ''){
			current_id = "entry_" + id;
		}

		if (element.style.display == 'none'){
			if (count < 6){
				element.style.display = 'block';
				count++;
			}else{
				break;
			}
		}
	}

	if (document.getElementById("entry_" + max_num).style.display == "block"){
		document.getElementById("nextlink").style.display = "none";
	}
}


function dispNextListTheme(max_num){

	var current_id = '';
	var count = 0;

	for (i=0; i<max_num; i++){
		id = i + 1;
		var element = document.getElementById("theme_disp_" + id);

		if (current_id == ''){
			current_id = "theme_disp_" + id;
		}

		if (element.style.display == 'none'){
			element.style.display = 'block';
			break;
		}
	}

	if (document.getElementById("theme_disp_" + max_num).style.display == "block"){
		document.getElementById("theme_next").style.display = "none";
	}

}