var elementId = "csuszologotopplusz";

var defTop = document.getElementById(elementId).offsetTop;
var defWidth = document.getElementById(elementId).style.width;
var defHeight = document.getElementById(elementId).style.height;
var defPosition = document.getElementById(elementId).style.position;


function movelogo() {
	var img = document.getElementById(elementId);
	if (typeof(img) != 'undefined' && img != null) {
		// Exists.
		if (window.pageYOffset > defTop) {
			img.style.position = "fixed";		
			img.style.top = "0px";
			img.style.left = "0px"
			
			var tl = document.getElementById("web_top").offsetLeft;
			
			img.style.width = tl+"px";
			img.style.height = "auto";
			
			if (img.clientHeight<64) {
				img.style.height = "64px";
				img.style.width = "auto";
			}
/**/
		} else {
			img.style.width = defWidth;
			img.style.height = defHeight;
			img.style.position = defPosition;
		}
	}
};

//Csúszós logo
window.addEventListener("scroll", function(event) {movelogo();}, false);
window.addEventListener("resize", function(event) {movelogo();}, false);