function check_box(id) {
	if (document.getElementById('ch_'+id).checked == false)
	{
		document.getElementById('ch_'+id).checked = true;
		document.getElementById('i_'+id).style.color='#ff6600';
		document.getElementById('i_'+id).style.backgroundImage="url(/img/checkbox-full.gif)";
	}
	else {
		document.getElementById('ch_'+id).checked = false;
		document.getElementById('i_'+id).style.color='#000000';
		document.getElementById('i_'+id).style.backgroundImage='url(/img/checkbox-empty.gif)';
	}
}

function set_box(id,val) {
	if (val == true)
	{
		document.getElementById('ch_'+id).checked = true;
		document.getElementById('i_'+id).style.color='#ff6600';
		document.getElementById('i_'+id).style.backgroundImage="url(/img/checkbox-full.gif)";
	}
	else {
		document.getElementById('ch_'+id).checked = false;
		document.getElementById('i_'+id).style.color='#000000';
		document.getElementById('i_'+id).style.backgroundImage='url(/img/checkbox-empty.gif)';
	}
}

function set_order(id) {
	set_box('abeceda',false);
	set_box('cena',false);
	set_box('doba',false);
	set_box('shoda',false);
	set_box(id,true);
}

function no_get(){
	prvky=new Array("ch_doba","ch_zena","ch_muz","ch_abeceda","ch_cena","ch_shoda","ch_sklad","ch_akce","f_znacka");
	for (var i in prvky){
		document.getElementById(prvky[i]).disabled="disabled";
	}
}