function popupShow(content, b1name, b1func, b2name, b2func){
	$("popup").show();
	$("background").show();
	$("popup-content").innerHTML=content;
	$("popup-buttons").innerHTML='';
	if(isSet(b1name)==true && isSet(b1func)==true){
		$("popup-buttons").innerHTML+='<div class="popup-button" onclick="'+b1func+'">'+b1name+'</div>';
	}
	if(isSet(b2name)==true && isSet(b2func)==true){
		$("popup-buttons").innerHTML+='<div class="popup-button" onclick="'+b2func+'">'+b2name+'</div>';
	}
}
function popupHide(){
	$("popup").hide();
	$("background").hide();
}
function isSet(v){
	if(typeof v=='undefined'){
		return false;
	}
	return true;
}
function u(field, value){
	document.getElementById(field).innerHTML=value;
}
function c(field, value){
	document.getElementById(field).className=value;
}
window.onload=function(){
}