Try this:
$("a.delete").click(function(){
var td=$(this).parent();
var col=$(td).text();
col=col.substring(col.length-2)*1;
var f="td:nth-child("+col+")";
var tbl=$(td).parent().parent();
$(tbl).find("tr").each(function(){
$(this).find(f).hide();
});
Tested in FF3.5.
there is one concern though getting column number. If number of columns excede 2 digits it will not work. It would be better if you put custom attribute and assign it position of column.
<a class="delete" href="#" col="2">...</a>
remember with nth-child index starts at 1