function changeBtnImgSrc(id_parent, id, src1, src2, mouseover) {
	var code = '';
	if (mouseover) {
		code = 'onmouseout="' + "changeBtnImgSrc('" + id_parent + "', '" + id + "', '" + src2 + "', '" + src1 + "'," + !mouseover + ");" + '"';
	}
	else {
		code = 'onmouseover="' + "changeBtnImgSrc('" + id_parent + "', '" + id + "', '" + src2 + "', '" + src1 + "'," + !mouseover + ");" + '"';
	}
	
	document.getElementById(id_parent).innerHTML = '<input type="image" name="' + id + '" id="' + id + '" src="' + src1 + '" border="0"'  + code + '" style="margin-bottom: 6px;"/>';
}

function changeBtnImgSrc2(id_parent, id, src1, src2, mouseover) {
	var code = '';
	if (mouseover) {
		code = 'onmouseout="' + "changeBtnImgSrc('" + id_parent + "', '" + id + "', '" + src2 + "', '" + src1 + "'," + !mouseover + ");" + '"';
	}
	else {
		code = 'onmouseover="' + "changeBtnImgSrc('" + id_parent + "', '" + id + "', '" + src2 + "', '" + src1 + "'," + !mouseover + ");" + '"';
	}
	
	document.getElementById(id_parent).innerHTML = '<img name="' + id + '" id="' + id + '" src="' + src1 + '" border="0"'  + code + '" style="margin-bottom: 6px;"/>';
}

function changeImg(id, src) {
	document.getElementById(id).src= src;

}


	
function changeBtnImgSrcNoBorder(id_parent, id, src1, src2, mouseover) {
/*	var code = '';
	if (mouseover) {
		code = 'onmouseout="' + "changeBtnImgSrcNoBorder('" + id_parent + "', '" + id + "', '" + src2 + "', '" + src1 + "'," + !mouseover + ");" + '"';
	}
	else {
		code = 'onmouseover="' + "changeBtnImgSrcNoBorder('" + id_parent + "', '" + id + "', '" + src2 + "', '" + src1 + "'," + !mouseover + ");" + '"';
	}
	
	document.getElementById(id_parent).innerHTML = '<input type="image" name="' + id + '" id="' + id + '" src="' + src1 + '" border="0"'  + code + '"/>';	
*/
	var code = '';
	if (mouseover) {
		code = 'onmouseout="' + "changeBtnImgSrcNoBorder('" + id_parent + "', '" + id + "', '" + src2 + "', '" + src1 + "'," + !mouseover + ");" + '"';
	}
	else {
		code = 'onmouseover="' + "changeBtnImgSrcNoBorder('" + id_parent + "', '" + id + "', '" + src2 + "', '" + src1 + "'," + !mouseover + ");" + '"';
	}
	
	document.getElementById(id_parent).innerHTML = '<input type="image" name="' + id + '" id="' + id + '" src="' + src1 + '" border="0"'  + code + '"/>';
}

function changeBtnImgSrcNoBorder2(id_parent, id, src1, src2, mouseover) {
/*	var code = '';
	if (mouseover) {
		code = 'onmouseout="' + "changeBtnImgSrcNoBorder('" + id_parent + "', '" + id + "', '" + src2 + "', '" + src1 + "'," + !mouseover + ");" + '"';
	}
	else {
		code = 'onmouseover="' + "changeBtnImgSrcNoBorder('" + id_parent + "', '" + id + "', '" + src2 + "', '" + src1 + "'," + !mouseover + ");" + '"';
	}
	
	document.getElementById(id_parent).innerHTML = '<input type="image" name="' + id + '" id="' + id + '" src="' + src1 + '" border="0"'  + code + '"/>';	
*/
	var code = '';
	if (mouseover) {
		code = 'onmouseout="' + "changeBtnImgSrcNoBorder('" + id_parent + "', '" + id + "', '" + src2 + "', '" + src1 + "'," + !mouseover + ");" + '"';
	}
	else {
		code = 'onmouseover="' + "changeBtnImgSrcNoBorder('" + id_parent + "', '" + id + "', '" + src2 + "', '" + src1 + "'," + !mouseover + ");" + '"';
	}
	
	document.getElementById(id_parent).innerHTML = '<img name="' + id + '" id="' + id + '" src="' + src1 + '" border="0"'  + code + '"/>';
}

function napoveda(num) {

	for (i = 1; i <= 5; i++) {
		if (i != num) document.getElementById('napov' + i).style.display='none';
	}
	
	var obj = document.getElementById('napov' + num); 	
	
	if (obj.style.display != 'block') obj.style.display = 'block';
	else obj.style.display = 'none';

}