/**
 * Copyright (c) 2008 Pasyuk Sergey (www.codeasily.com)
 * Licensed under the MIT License:
 * http://www.opensource.org/licenses/mit-license.php
 *
 * Splits a <ul>/<ol>-list into equal-sized columns.
 *
 * Requirements:
 * <ul>
 * <li>"ul" or "ol" element must be styled with margin</li>
 * </ul>
 *
 * @see http://www.codeasily.com/jquery/multi-column-list-with-jquery
 */
jQuery.fn.makeacolumnlists = function(settings){
 settings = jQuery.extend({
  cols: 3,  // set number of columns
  colWidth: 0,  // set width for each column or leave 0 for auto width
  equalHeight: false,  // can be false, 'ul', 'ol', 'li'
  startN: 1  // first number on your ordered list
 }, settings);

 if(jQuery('> li', this)) {
  this.each(function(y) {
   var y=jQuery('.li_container').size(),
    height = 0,
    maxHeight = 0,
    t = jQuery(this),
    classN = t.attr('class'),
    listsize = jQuery('> li', this).size(),
    percol = Math.ceil(listsize/settings.cols),
    contW = t.width(),
    bl = ( isNaN(parseInt(t.css('borderLeftWidth'),10)) ? 0 : parseInt(t.css('borderLeftWidth'),10) ),
    br = ( isNaN(parseInt(t.css('borderRightWidth'),10)) ? 0 : parseInt(t.css('borderRightWidth'),10) ),
    pl = parseInt(t.css('paddingLeft'),10),
    pr = parseInt(t.css('paddingRight'),10),
    ml = parseInt(t.css('marginLeft'),10),
    mr = parseInt(t.css('marginRight'),10),
    col_Width = Math.floor((contW - (settings.cols-1)*(bl+br+pl+pr+ml+mr))/settings.cols);
   if (settings.colWidth) {
    col_Width = settings.colWidth;
   }
   var colnum=1,
    percol2=percol;
   jQuery(this).addClass('li_cont1').wrap('<div id="li_container' + (++y) + '" class="li_container"></div>');
   if (settings.equalHeight=='li') {
    jQuery('> li', this).each(function() {
     var e = jQuery(this);
     var border_top = ( isNaN(parseInt(e.css('borderTopWidth'),10)) ? 0 : parseInt(e.css('borderTopWidth'),10) );
     var border_bottom = ( isNaN(parseInt(e.css('borderBottomWidth'),10)) ? 0 : parseInt(e.css('borderBottomWidth'),10) );
     height = e.height() + parseInt(e.css('paddingTop'), 10) + parseInt(e.css('paddingBottom'), 10) + border_top + border_bottom;
     maxHeight = (height > maxHeight) ? height : maxHeight;
    });
   }
   for (var i=0; i<=listsize; i++) {
    if(i>=percol2) { percol2+=percol; colnum++; }
    var eh = jQuery('> li:eq('+i+')',this);
    eh.addClass('li_col'+ colnum);
    if(jQuery(this).is('ol')){eh.attr('value', ''+(i+settings.startN))+'';}
    if (settings.equalHeight=='li') {
     var border_top = ( isNaN(parseInt(eh.css('borderTopWidth'),10)) ? 0 : parseInt(eh.css('borderTopWidth'),10) );
     var border_bottom = ( isNaN(parseInt(eh.css('borderBottomWidth'),10)) ? 0 : parseInt(eh.css('borderBottomWidth'),10) );
     mh = maxHeight - (parseInt(eh.css('paddingTop'), 10) + parseInt(eh.css('paddingBottom'), 10) + border_top + border_bottom );
     eh.height(mh);
    }
   }
   jQuery(this).css({cssFloat:'left', width:''+col_Width+'px'});
   for (colnum=2; colnum<=settings.cols; colnum++) {
    if(jQuery(this).is('ol')) {
     jQuery('li.li_col'+ colnum, this).appendTo('#li_container' + y).wrapAll('<ol class="li_cont'+colnum +' ' + classN + '" style="float:left; width: '+col_Width+'px;"></ol>');
    } else {
     jQuery('li.li_col'+ colnum, this).appendTo('#li_container' + y).wrapAll('<ul class="li_cont'+colnum +' ' + classN + '" style="float:left; width: '+col_Width+'px;"></ul>');
    }
   }
   if (settings.equalHeight=='ul' || settings.equalHeight=='ol') {
    for (colnum=1; colnum<=settings.cols; colnum++) {
     jQuery('#li_container'+ y +' .li_cont'+colnum).each(function() {
      var e = jQuery(this);
      var border_top = ( isNaN(parseInt(e.css('borderTopWidth'),10)) ? 0 : parseInt(e.css('borderTopWidth'),10) );
      var border_bottom = ( isNaN(parseInt(e.css('borderBottomWidth'),10)) ? 0 : parseInt(e.css('borderBottomWidth'),10) );
      height = e.height() + parseInt(e.css('paddingTop'), 10) + parseInt(e.css('paddingBottom'), 10) + border_top + border_bottom;
      maxHeight = (height > maxHeight) ? height : maxHeight;
     });
    }
    for (colnum=1; colnum<=settings.cols; colnum++) {
     var eh = jQuery('#li_container'+ y +' .li_cont'+colnum);
     var border_top = ( isNaN(parseInt(eh.css('borderTopWidth'),10)) ? 0 : parseInt(eh.css('borderTopWidth'),10) );
     var border_bottom = ( isNaN(parseInt(eh.css('borderBottomWidth'),10)) ? 0 : parseInt(eh.css('borderBottomWidth'),10) );
     mh = maxHeight - (parseInt(eh.css('paddingTop'), 10) + parseInt(eh.css('paddingBottom'), 10) + border_top + border_bottom );
     eh.height(mh);
    }
   }
   jQuery('#li_container' + y).append('<div style="clear:both; overflow:hidden; height:0px;"></div>');
  });
 }
}

jQuery.fn.uncolumnlists = function(){
 jQuery('.li_cont1').each(function(i) {
  var onecolSize = jQuery('#li_container' + (++i) + ' .li_cont1 > li').size();
  if(jQuery('#li_container' + i + ' .li_cont1').is('ul')) {
   jQuery('#li_container' + i + ' > ul > li').appendTo('#li_container' + i + ' ul:first');
   for (var j=1; j<=onecolSize; j++) {
    jQuery('#li_container' + i + ' ul:first li').removeAttr('class').removeAttr('style');
   }
   jQuery('#li_container' + i + ' ul:first').removeAttr('style').removeClass('li_cont1').insertBefore('#li_container' + i);
  } else {
   jQuery('#li_container' + i + ' > ol > li').appendTo('#li_container' + i + ' ol:first');
   for (var j=1; j<=onecolSize; j++) {
    jQuery('#li_container' + i + ' ol:first li').removeAttr('class').removeAttr('style');
   }
   jQuery('#li_container' + i + ' ol:first').removeAttr('style').removeClass('li_cont1').insertBefore('#li_container' + i);
  }
  jQuery('#li_container' + i).remove();
 });
}