var total = 0;
function add_new_row(){
	total++;
	$('<tr>')
	.attr('id','selectData'+total)
	.append (
		$('<td>')
		.append(
			$('<input type="text" id="kod'+total+'" class="kod form-control" name="kod[]" onchange="javascript:selectPart'+total+'();"/>')
		)			
	)
	.append (
		$('<td>')
		.append(
			$('<input type="text" class="form-control" name="t_name[]" value=""/>')			
		)		
	)
		
	.append (
		$('<td>')
		.append(
			$('<div class="summa">12345</div>')
		)			
	)	
	
	.append (
		$('<td>')
		.append (
			$('<span id="progress_'+total+'"><a  href="#" onclick="$(\'#selectData'+total+'\').remove();" class="ico_delete"><i class="fa fa-minus-circle"></i></a></span>')
		)
	)
}

window.captureEvents(Event.KEYPRESS); 
window.onkeypress = pressed; 
    function pressed(e) { 
        if(e.which == 43) {
            add_new_row();
			var suma = 0;
			$('.summa').each(function() {
				suma +=  parseInt($('.summa').html());
			});
			$('.middle-t1').append(suma);
        }
    }