function over(f,e){
	document.getElementsByName(e)[0].src= f+e+'.png';
}

function out(f,e){
    document.getElementsByName(e)[0].src= f+e+'_lite.png';
}
function hov(e,id){
	mov(e,id);
	document.getElementById(id).style.display = 'block';
}
function mov(e,id){
	var posx = 0;
	var posy = 0;
	if (e.pageX || e.pageY){ // works for safari 2.0.4
		posx = e.pageX;
		posy = e.pageY;
	}
	else if (e.clientX || e.clientY){ // firefox, IE6, Opera
		posx = e.clientX + document.body.scrollLeft
			+ document.documentElement.scrollLeft;
		posy = e.clientY + document.body.scrollTop
			+ document.documentElement.scrollTop;
	}
	document.getElementById(id).style.left = posx + 15;
	document.getElementById(id).style.top = posy + 15;
}
function un(id){
	document.getElementById(id).style.display = 'none';
}

   classes = new Image();    classes.src = '/classes/classes.png';
 cityscape = new Image();  cityscape.src = '/images/cityscape.png';
 landscape = new Image();  landscape.src = '/images/landscape.png';
   figures = new Image();    figures.src = '/images/figures.png';
still_life = new Image(); still_life.src = '/images/still_life.png';
 commision = new Image();  commision.src = '/images/commision.png';
 community = new Image();  community.src = '/community/community.png';