var ampCssRef = document.createElement('link');
ampCssRef.setAttribute("rel","stylesheet");
ampCssRef.setAttribute("type","text/css");
var folderPath = self === parent ? 'portal/css/' : '../css/';
if(self === parent){
    folderPath = 'portal/css/';
}else{
    if(/\/model\./.test(window.location.href)){
        folderPath = '../../css/';
    }else{
        folderPath = '../css/';
    }
}
ampCssRef.setAttribute("href",folderPath + parent.window.AMPConfigure.skin+"/amp.min.css");
document.getElementsByTagName("head")[0].appendChild(ampCssRef);