function Kozepre(Img){
	var DivHeight = $(Img).height();
	var DivWidth = $(Img).width();
	var WindowHeight = $(window).height();
	var WindowWidth = $(window).width();
	
	var wd = ((WindowHeight-DivHeight)/2)+$(window).scrollTop();
	var hd = ((WindowWidth-DivWidth)/2);	
	$(Img).stop().animate({'left':hd,'top':wd},100);

}