load_popup_ajax=function(id,file){

	include (id,file);
	var popup_content=document.getElementById(id);
	popup_content.style.visibility='visible';
}

load_popup=function(popup_id,content_id){

	document.getElementById(popup_id).innerHTML =  document.getElementById(content_id).innerHTML;
	var popup_content=document.getElementById(popup_id);
	popup_content.style.visibility='visible';
}

show_popup=function(id){

	var popup_content=document.getElementById(popup_id);
	popup_content.style.visibility='visible';
}

hide_popup=function(id){

	var popup_content=document.getElementById(id);
	popup_content.style.visibility='hidden';
}