function open_window(megnyitoldal,szelesseg,magassag)
{
	var magassaga=magassag;
	var H = (screen.height - magassaga) / 2;
	var szelessege=szelesseg;
	var L = (screen.width - szelessege) / 2;
	pop_up = window.open(megnyitoldal,"Popup","status=yes,scrollbars=no,resizable=no,height="+magassaga+",width="+szelessege+",top="+H+",left="+L);
}


function set3DivHeight(idDiv1, idDiv2, idDiv3){

	if (document.getElementById(idDiv1) != undefined && document.getElementById(idDiv1)!=null && document.getElementById(idDiv2) != undefined && document.getElementById(idDiv2)!=null && document.getElementById(idDiv3) != undefined && document.getElementById(idDiv3)!=null){
    	
        var maxHeight = 0;
        var div1 = document.getElementById(idDiv1).offsetHeight;
        var div2 = document.getElementById(idDiv2).offsetHeight;
        var div3 = document.getElementById(idDiv3).offsetHeight;
        
        maxHeight = (div1 < div2) ? div2 : div1;
        maxHeight = (maxHeight < div3) ? div3 : maxHeight;
        
        document.getElementById(idDiv1).style.height = maxHeight + "px";
        document.getElementById(idDiv2).style.height = maxHeight + "px";
        document.getElementById(idDiv3).style.height = maxHeight + "px";
    }
}


/*function startSlideshow() {
	alert('Staaart');
var slideshow = new timedSlideShow($('mySlideshow'), mySlideData);
}
addLoadEvent(startSlideshow);*/