// Script menu 
function addCss(cssCode) { 
var styleElement = document.createElement("style"); 
styleElement.type = "text/css"; 
if (styleElement.styleSheet) { 
styleElement.styleSheet.cssText = cssCode; 
} else { 
styleElement.appendChild(document.createTextNode(cssCode)); 
} 
document.getElementsByTagName("head")[0].appendChild(styleElement); 
}