Siamesecat's background filters

[doc_psycho]

@siamesecat

i found your background filters very useful, thank you

is there a way to make them work for a site like
http://www.google.de
or
http://www.web.de ?

a jsvascript in an bookmarklet is workin
but i dont want to push button anytime
this is the java
j(function(){function getRGBColor(node,prop){var rgb=getComputedStyle(node,null).getPropertyValue(prop);var r,g,b;if(/rgb\((\d+),\s(\d+),\s(\d+)\)/.exec(rgb)){r=parseInt(RegExp.$1,10);g=parseInt(RegExp.$2,10);b=parseInt(RegExp.$3,10);return[r/255,g/255,b/255];}return rgb;} R(document.documentElement); function R(n){var i,x,color;if(n.nodeType==Node.ELEMENT_NODE && n.tagName.toLowerCase()!=%22input%22 && n.tagName.toLowerCase()!=%22select%22 && n.tagName.toLowerCase!=%22textarea%22){for(i=0;x=n.childNodes[i];++i)R(x); color=getRGBColor(n,%22background-color%22);if(typeof(color)!=%22string%22){if (color[0] + color[1] + color[2] >= 2.8) { n.style.backgroundColor = %22tan%22;/*Moz 1.0*/ n.style.setProperty(%22background-color%22, %22tan%22, %22important%22);/*Moz 1.4 after zap colors*/ } }}}})()


would be glad for any help or hint
by anyone

doc_psycho