function insertAtCaret(element, text) {

    if (document.selection) {  

             element.focus();  

             var sel = document.selection.createRange();  

             sel.text = text;  

             element.focus();  

          } else if (element.selectionStart || element.selectionStart === 0) {  

             var startPos = element.selectionStart;  

             var endPos = element.selectionEnd;  

             var scrollTop = element.scrollTop;  

             element.value = element.value.substring(0, startPos) + ' ' + text + ' ' +   

                             element.value.substring(endPos, element.value.length);  

             element.focus();  

             element.selectionStart = startPos + text.length;  

             element.selectionEnd = startPos + text.length;  

             element.scrollTop = scrollTop;  

         } else {  

             element.value += ' ' + text + ' ';  

             element.focus();  

         }  

}

​

$(document).ready(function() {

    var options = {

        drop: function(ev, ui) {         

            insertAtCaret($(".editor").get(0), ui.draggable.eq(0).text());

        }

    };

​

    $("#q").draggable({

        helper:'clone',

        start: function(event, ui) {              $(".jqte").droppable(options).show();

        },

        stop: function(event, ui) {

            $(".editor").droppable('destroy').hide();

        }

    });

});