Updated:
$(document).ready(function() {
var colSelect;
$('#one').on('mouseover' ,mousedwn);
function mousedwn(){
colSelect = '.' + $(this).attr('id');
resize(colSelect);
}
$('#one').on('mouseout' ,function(){
$('#one').off('mouseover' ,mousedwn); //prevent memory leaks
});
});
function resize(para){
$( '#1' ).resizable(
{handles:'e'},
{alsoResize: para}
);
}