function changeImage(image_name,image)
{
	/* Image should not be NULL */
	image.src="neurepub/images/"+image_name;
}
function moveover(image_name,image)
{
	if(!image){
		image = document.getElementById(image_name);
    }
	changeImage(image_name+"_f2.jpg",image);
}
function moveout(image_name,image)
{
	if(!image){
		image = document.getElementById(image_name);
    }
	changeImage(image_name+".jpg",image);
}

function openHelp() {
 	var load = window.open('http://www.lukimat.fi/matematiikka/materiaalit/Tietokoneohjelmat/LukiMat-ohjelmat/neure-ohjeet','_blank','scrollbars=yes,menubar=no,height=730,width=975,resizable=yes,toolbar=no,location=no,status=no'); 
 	load.focus();
}