function change_hover(el){
	document.getElementById(el.id).style.backgroundImage='url(/assets/templates/riamax/images/checkbox_active.png)';
}
function change_hover_out(el){
	if (document.getElementById(el.id).className=='my_checkbox checked'){
		document.getElementById(el.id).style.backgroundImage='url(/assets/templates/riamax/images/checkbox_checked.png)';
	} else {
		document.getElementById(el.id).style.backgroundImage='url(/assets/templates/riamax/images/checkbox.png)';
	}
}