function buttonOn(mod, button_code)
{
	document.getElementById('button_'+mod+'_left').style.backgroundImage = "url(images/buttons/"+button_code+"/button_left_on.png)";
	document.getElementById('button_'+mod+'_middle').style.background = "url('images/buttons/"+button_code+"/button_middle_on.png') repeat-x";
	//alert(document.getElementById('button_'+mod+'_middle').style.background);
	document.getElementById('button_'+mod+'_right').style.backgroundImage = "url(images/buttons/"+button_code+"/button_right_on.png)";
}

function buttonOff(mod, button_code)
{
	document.getElementById('button_'+mod+'_left').style.backgroundImage = "url(images/buttons/"+button_code+"/button_left_off.png)";
	document.getElementById('button_'+mod+'_middle').style.backgroundImage = "url(images/buttons/"+button_code+"/button_middle_off.png)";

	document.getElementById('button_'+mod+'_right').style.backgroundImage = "url(images/buttons/"+button_code+"/button_right_off.png)";
}