Javascript SLUG

js-slug.js

var toSlug = function(str) {
	  str = str.replace(/^\s+|\s+$/g, ''); // trim
	  str = str.toLowerCase();

	  // remove accents, swap ñ for n, etc
	  var from = "ãàáäâẽèéëêìíïîõòóöôùúüûñç·/_,:;";
	  var to   = "aaaaaeeeeeiiiiooooouuuunc------";
	  for (var i=0, l=from.length ; i<l ; i++) {
	    str = str.replace(new RegExp(from.charAt(i), 'g'), to.charAt(i));
	  }

	  str = str.replace(/[^a-z0-9 -]/g, '') // remove invalid chars
	    .replace(/\s+/g, '-') // collapse whitespace and replace by -
	    .replace(/-+/g, '-'); // collapse dashes

	  return str;
	};