/*
 * Copyright (c) 2008 Greg Weber greg at gregweber.info
 * Dual licensed under the MIT and GPL licenses:
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.gnu.org/licenses/gpl.html
 *
 * documentation at http://gregweber.info/projects/uitablefilter
 */

jQuery.uiTableFilter=function(jq,phrase,column,ifHidden){var new_hidden=false;if(this.last_phrase===phrase)return false;var phrase_length=phrase.length;var words=phrase.toLowerCase().split(" ");var matches=function(elem){elem.show()}
var noMatch=function(elem){elem.hide();new_hidden=true}
var getText=function(elem){return elem.text()}
if(column){var index=null;jq.find("thead > tr:last > th").each(function(i){if($(this).text()==column){index=i;return false;}});if(index==null)throw("given column: "+column+" not found")
getText=function(elem){return jQuery(elem.find(("td:eq("+index+")"))).text()}}
if((words.size>1)&&(phrase.substr(0,phrase_length-1)===this.last_phrase)){if(phrase[-1]===" ")
{this.last_phrase=phrase;return false;}
var words=words[-1];matches=function(elem){;}
var elems=jq.find("tbody > tr:visible")}
else{new_hidden=true;var elems=jq.find("tbody > tr")}
elems.each(function(){var elem=jQuery(this);jQuery.uiTableFilter.has_words(getText(elem),words,false)?matches(elem):noMatch(elem);});last_phrase=phrase;if(ifHidden&&new_hidden)ifHidden();return jq;};jQuery.uiTableFilter.last_phrase=""
jQuery.uiTableFilter.has_words=function(str,words,caseSensitive)
{var text=caseSensitive?str:str.toLowerCase();for(var i=0;i<words.length;i++){if(text.indexOf(words[i])===-1)return false;}
return true;}