function changePicOver(name){
    document.getElementById(name).src="./img/over_m_"+name+".jpg";
}

function changePicOverEn(name){
    document.getElementById(name).src="./img/over_ENm_"+name+".jpg";
}

function changePicBack(name){
    document.getElementById(name).src="./img/m_"+name+".jpg";
}

function changePicBackEn(name){
    document.getElementById(name).src="./img/ENm_"+name+".jpg";
}