function $(id){return document.getElementById(id);}function CSSClass(classe){for (var i=0;i<document.styleSheets.length;i++) {var X=document.styleSheets[i];X=(X.cssRules?X.cssRules:X.rules);for (var j=0;j<X.length;j++)if (X[j].selectorText==classe) return X[j];}return null;}function BackColor(id, bcolor){$(id).style.backgroundColor=(bcolor==null?'transparent':'#'+bcolor);}function TxtColor(id, color){$(id).style.color=(color==null?'inherit':'#'+color);}function BackGround(id, url){$(id).style.backgroundImage='url(\''+url+'\')';}function Display(id){$(id).style.display=(arguments.length>1?arguments[1]:'block');}function Visibility(id){$(id).style.visibility=(arguments.length>1?arguments[1]:'visible');}