function RemoveCssFile(filename)
{
    var targetelement = "link"
    var targetattr = "href"
    var allsuspects=document.getElementsByTagName(targetelement)
    for (var i=allsuspects.length; i>=0; i--)
    { //search backwards within nodelist for matching elements to remove
        if (allsuspects[i] && allsuspects[i].getAttribute(targetattr)!=null && allsuspects[i].getAttribute(targetattr).indexOf(filename)!=-1)
        allsuspects[i].parentNode.removeChild(allsuspects[i]) //remove element by calling parentNode.removeChild()
    }
}