function showMenu(id){
    var menu=$(id);
    if(menu.style.display=="none") menu.style.display="block";
    else menu.style.display="none";
}
function adjustHeight(){
    // külső
    var div1=$("left");
    var div2=$("right");
    var h1=div1.offsetHeight;
    var h2=div2.offsetHeight;
    var max=h1>h2?h1:h2;
    div1.style.height=max+"px";
    div2.style.height=max+"px";
    // belső
    var div1=$("content");
    var div2=$("content_right");
    var h1=div1.offsetHeight;
    var h2=div2.offsetHeight;
    var max=h1>h2?h1:h2;
    div1.style.height=max+"px";
    div2.style.height=max+"px";
}
var wait=false;
function dontWait(){
	wait=false;
}
function menuAnim(id){
	var div=$(id);
	if(!wait){
		wait=true;
		if(div.style.display=="none") 
			Effect.BlindDown(div,{duration:0.5,transition: Effect.Transitions.spring, afterFinish:dontWait});
		else 
			Effect.BlindUp(div,{duration:0.3,transition: Effect.Transitions.sinoidal, afterFinish:dontWait});
	}
}