// JavaScript Document
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)
}

function changetab(tab,text,newclass) {
	var currenttabs = new Array();
	currenttabs = getElementsByClassName(document.getElementById("producttabs"), "li", "current"); 
	currenttabs[0].className="inactive";
	newtab=document.getElementById(tab);
	newtab.className="current";
	var currenttext = new Array();
	currenttabs = getElementsByClassName(document, "div", newclass); 
	currenttabs[0].className="hiddencontent";
	newtext=document.getElementById(text);
	newtext.className=newclass;
}