function setup(){
    var elarr = document.getElementsByTagName('input');
    for(var i = 0; i < elarr.length; i++){

        var type = elarr[i].type;
        if(type=='submit' || type=='button' || type=='reset'){
            if(elarr[i].className == 'button'){
                
                elarr[i].onmouseover = function buttonhover(){
                    this.className= 'buttonHover';

                }
                elarr[i].onmouseout = function buttonout(){
                    this.className= 'button';

                }
            }

            if(elarr[i].className == 'button_m'){
                
                elarr[i].onmouseover = function buttonhover(){
                    this.className= 'buttonHover_m';

                }
                elarr[i].onmouseout = function buttonout(){
                    this.className= 'button_m';

                }
            }
            if(elarr[i].className == 'button_l'){

                elarr[i].onmouseover = function buttonhover(){
                    this.className= 'buttonHover_l';

                }
                elarr[i].onmouseout = function buttonout(){
                    this.className= 'button_l';

                }
            }
        }
    }

}