IE8 throws an "Error: Object required" message (error in the actual jquery library script, not my javascript file) when the switch statement in this function runs. This code works in IE6, IE7, FF3, and Safari... Any ideas? Does it have something to do with the '$(this)' selector in the switch? Thanks!

function totshirts(){
    $('.shirt-totals input').val('0');
    var cxs = 0;
    var cs = 0;
    var cm = 0;
    $.each($('select.size'), function() {
    	switch($(this).val()){
    		case "cxs":
    			cxs ++;
    			$('input[name="cxs"]').val(cxs);
    			break;
    		case "cs":
    			cs ++;
    			$('input[name="cs"]').val(cs);
    			break;
    		case "cm":
    			cm ++;
    			$('input[name="cm"]').val(cm);
    			break;
    	}
    });
}