$("document").ready(function(){
	var count = 1;
	var counter = 0;
	$("span#add").click(function(){
		$("tr#tr_add_"+ counter).after("<tr><td>Uploade file</td><td><input type='file' name='filename_"+ count +"' /></td></tr>");		
		$("tr#tr_add_"+ counter).next().attr('id', 'tr_add_'+ count);
		document.getElementById('file_count').value = count;		
		count++;
		counter++;
	});
});