Call on ready, dont pollute window namespace with vars

js/id_colors.js

@@ -1,3 +1,5 @@
+if (active_page == 'thread' || active_page == 'index') {
+	$(document).ready(function(){
 		$.hash = function(str) {
 			var i, j, msg = 0;
 			
@@ -31,4 +33,5 @@ $(".poster_id").each(function(){
 				"color": "white"
 			});
 		});
-
+	});
+}