var dropdownbg = new Image(1,1); dropdownbg.src = "/rv4_images/drop_down_bg.png";

jQuery(document).ready(function(){
    jQuery("#dropDownNav").superfish({
        delay:       300,                               // milliseconds delay on mouseout 
        animation:   {height:'show'},                   // fade-in and slide-down animation 
        speed:       'fast',                            // animation speed 
        autoArrows:  false,                             // generation of arrow mark-up
        disableHI:   true,                              // disable hoverIntent detection
        dropShadows: false                              // drop shadows
    });
});

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