Consider the scenario below:
In case of operations between two list boxes like add, add all, remove, remove all; jQuery is quite amazing with it. With the use of appendTo method, you just need one line for each of the four operations. Checkout the code below:
$(document).ready(function(){
$(“#btnAdd”).click(function() {
$(“select[id$=’lstAllAgents’] > option:selected”).appendTo(“select[id$=’lstGroupMembers’]”);
});
$(“li#btnAddAll”).click(function() {
$(“select[id$=’lstAllAgents’] > option”).appendTo(“select[id$=’lstGroupMembers’]”);
});
$(“li#btnRemove”).click(function() {
$(“select[id$=’lstGroupMembers’] > option:selected”).appendTo(“select[id$=’lstAllAgents’]”);
});
$(“li#btnRemoveAll”).click(function() {
$(“select[id$=’lstGroupMembers’] > option”).appendTo(“select[id$=’lstAllAgents’]”);
});
});
Note: btnAdd,btnAddAll,btnRemove,btnRemoveAll are the button id’s while lstAllAgents & lstGroupMembers are the id’s of the listboxes.
The Relentless FrontEnd - Aackose Lal's Blog 
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I hit this link and it is pretty helpfull
http://www.dotnetspark.com/kb/1683-add-remove-items-from-one-listbox-to-another.aspx
I tried your code ! some how i couldn’t able to copy it with correct syntax !
jQuery(“#ADD”).click(function() {
jQuery(“select[Select1jQuery=’drop1′] > option:selected”).appendTo(“select[Select2jQuery=’drop2′]”);
});
my html code :
item 1
item 2
item 3
item 4
item 5
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