User:Elliot/categories.js

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var catFunction = function()
{
var categoryList = document.getElementById("catlinks").childNodes[0];
if (null != categoryList)
{
var catRE=new RegExp(/<[^>]*>/g);
var strRE=new RegExp(/^[^-]*-/);
var catList = categoryList.innerHTML.split(/ \| /);
var first = catList[0].split(": ");
catList[0] = first[1];
catList.sort(function(a,b){var A=a.toUpperCase().replace(catRE, ""); var B=b.toUpperCase().replace(catRE, ""); return ((A<B)?-1:(A==B)?0:1);});
var colLen = catList.length
var numCols = 1;
if (colLen > 8)
{
colLen = Math.floor((catList.length+2) / 3);
numCols = 3
} else if (colLen > 4)
{
colLen = Math.floor((catList.length+1) / 2);
numCols = 2;
}

var catTable = document.createElement("table");
for (var i=0; i<colLen; i++)
{
var row = catTable.insertRow(-1);
for (var r=0; (i+r<catList.length); r+=colLen)
{
var cell = row.insertCell(-1);
cell.innerHTML = catList[i+r];
var iText = cell.childNodes[0].childNodes[0];
if (document.all)
{
if (iText.innerText.indexOf("-") != -1) iText.innerHTML = iText.innerText.replace(strRE, "");
} else {
if (iText.text.indexOf("-") != -1) iText.innerHTML = iText.text.replace(strRE, "");
}
}
}
categoryList.innerHTML = first[0];
categoryList.appendChild(catTable);
}
}
if (window.attachEvent) window.attachEvent("onload", catFunction); else window.addEventListener("load", catFunction, true);