function navbar() //Do it this way so that it doesn't call until onLoad, or else it will return an error saying it's trying to call on a null object.
{
    var nav=$$('.navcontain');
    nav.each(function(head){
        head.addEvent('mouseover',function(e){
            this.tween('height','206px');
        });
        head.addEvent('mouseout',function(e){
            this.tween('height','42px');
        });
    });
}