function HideClass(d, e) {
if(d.length < 1) { return; }
var all_of_em=getElementsByClassName(document, "*", d);
var all_of_id=document.getElementById(e);
for(var i=0; i<all_of_em.length; i++){
	all_of_em[i].style.display = "none";
	if(all_of_em[i]=all_of_id){ all_of_em[i].style.display = "inline";}
	}
}

function getElementsByClassName(oElm, strTagName, strClassName){
    var arrElements = (strTagName == "*" && oElm.all)? oElm.all : oElm.getElementsByTagName(strTagName);
    var arrReturnElements = new Array();
    strClassName = strClassName.replace(/\-/g, "\\-");
    var oRegExp = new RegExp("(^|\\s)" + strClassName + "(\\s|$)");
    var oElement;
    for(var i=0; i<arrElements.length; i++){
        oElement = arrElements[i];      
        if(oRegExp.test(oElement.className)){
            arrReturnElements.push(oElement);
        }   
    }
    return (arrReturnElements)
}