function change1(element)
{
bgimage1 = 'url("images/mprincipal.jpg")';

document.getElementById(element).style.backgroundImage = bgimage1;
}
function change_back1(element){

bgimage1 = '';
document.getElementById(element).style.backgroundImage = bgimage1;
}

function change2(element)
{
bgimage2 = 'url("images/mevento.jpg")';

document.getElementById(element).style.backgroundImage = bgimage2;
}
function change_back2(element){

bgimage2 = '';
document.getElementById(element).style.backgroundImage = bgimage2;
}

function change3(element)
{
bgimage3 = 'url("images/mreglamento.jpg")';

document.getElementById(element).style.backgroundImage = bgimage3;
}
function change_back3(element){

bgimage3 = '';
document.getElementById(element).style.backgroundImage = bgimage3;
}

function change4(element)
{
bgimage4 = 'url("images/mpremios.jpg")';

document.getElementById(element).style.backgroundImage = bgimage4;
}
function change_back4(element){

bgimage4 = '';
document.getElementById(element).style.backgroundImage = bgimage4;
}

function change5(element)
{
bgimage5 = 'url("images/mhotelsede.jpg")';

document.getElementById(element).style.backgroundImage = bgimage5;
}
function change_back5(element){

bgimage5 = '';
document.getElementById(element).style.backgroundImage = bgimage5;
}

function change6(element)
{
bgimage6 = 'url("images/mmapa.jpg")';

document.getElementById(element).style.backgroundImage = bgimage6;
}
function change_back6(element){

bgimage6 = '';
document.getElementById(element).style.backgroundImage = bgimage6;
}

function change7(element)
{
bgimage7 = 'url("images/mgalerias.jpg")';

document.getElementById(element).style.backgroundImage = bgimage7;
}
function change_back7(element){

bgimage7 = '';
document.getElementById(element).style.backgroundImage = bgimage7;
}

function change8(element)
{
bgimage8 = 'url("images/mcontacto.jpg")';

document.getElementById(element).style.backgroundImage = bgimage8;
}
function change_back8(element){

bgimage8 = '';
document.getElementById(element).style.backgroundImage = bgimage8;
}