[Tchort]

Попробовал сделать так:

function ChangeType(bType,Type)
	{
		var min_cost_1000 = new Array();
		var min_cost_click = new Array();
		var text_min_cost = '<?= GetMessage("ADVNET_MIN_COST")?>: ';
		var curr_min_cost = '<?= str_replace("#", "", $arResult["CURRENCY"]["FORMAT_STRING"])?>';

		<?foreach ($arResult["TYPES"] as $sid => $arType):?>
		min_cost_1000['<?= $sid?>'] = '<?= number_format($arType["COST_1000"], 2)?>';
		min_cost_click['<?= $sid?>'] = '<?= number_format($arType["COST_CLICK"], 2)?>';
		<?endforeach;?>

		document.getElementById('COST_PER_1000_MIN').innerHTML = '';
		document.getElementById('COST_PER_CLICK_MIN').innerHTML = '';
			
		document.getElementById('TR_BANNER').style.display = '';
		document.getElementById('TR_CONTEXT').style.display = '';

		if (bType.value != '' && Type.value == 'context' || Type.value == 'context2')
		{
			document.getElementById('COST_PER_1000_MIN').innerHTML = text_min_cost + min_cost_1000[bType.value] + curr_min_cost;
			document.getElementById('COST_PER_CLICK_MIN').innerHTML = text_min_cost + min_cost_click[bType.value] + curr_min_cost;
				
			document.getElementById('TR_BANNER').style.display = 'none';
		}
		
		if (bType.value != '' && Type.value != 'context' || Type.value != 'context2')
		{
			document.getElementById('COST_PER_1000_MIN').innerHTML = text_min_cost + min_cost_1000[bType.value] + curr_min_cost;
			document.getElementById('COST_PER_CLICK_MIN').innerHTML = text_min_cost + min_cost_click[bType.value] + curr_min_cost;
				
			document.getElementById('TR_CONTEXT').style.display = 'none';
		}
	}

Но к сожалению не увенчалось успехом