setting dropped attribute into variable

[pkcidstudio]

See code:

$(function() {
		$( "#catalog" ).accordion();
		$("#catalog td").livequery(function(){ 
			$(this).draggable({
				appendTo: "body",
				helper: "clone",
				revert: "invalid"
			});
		});
		$( "#cart ol" ).livequery(function(){ 
			$(this).droppable({
				activeClass: "ui-state-default",
				hoverClass: "ui-state-hover",
				accept: ":not(.ui-sortable-helper)",
				drop: function( event, ui ) {
					$( this ).find( ".placeholder" ).remove();
					$( "<li></li>" ).text(ui.draggable.attr('id')).appendTo( this );
					//var divIndex = $(this).attr('id');
					var droppedId = $(this).ui.draggable.attr('id');
                	//addToBin(divIndex);
					addToBin(droppedId);
				}
			});
		}).livequery(function(){ 
			$(this).sortable({
			items: "li:not(.placeholder)",
			sort: function() {
				// gets added unintentionally by droppable interacting with sortable
				// using connectWithSortable fixes this, but doesn't allow you to customize active/hoverClass options
				$( this ).removeClass( "ui-state-default" );
			}
		});});
	});

Task: I am trying to grab the attributed id number from the item i drag. everything works fine, except for setting the variable value. Id like to set the variable value = to the attribute value so that I Could run a javascript function to update my database.

this is the part of the code giving me trouble:

var droppedId = $(this).ui.draggable.attr('id');
                	//addToBin(divIndex);
					addToBin(droppedId);

I have a feeling this is something easy but after googling for the better part of the night and trying many different ideas I could not figure out. Thank you in advance for the help everyone.

[pkcidstudio]

SOLVED: var droppedId = $(ui.draggable).attr("id");