<!-- Begin
function checkMetro(field, i) {

if (i == 0) { //All areas.
if (field[0].checked == true) {
for (i = 1; i <= 41; i++)
field[i].checked = true;
}
else 
if (field[0].checked == false) {
for (i = 1; i <= 41; i++)
field[i].checked = false;
    }
  }
else{
field[0].checked = false;
}
}

function checkMetro1(field, i) {
if (i == 3) { //
if (field[3].checked == true) {
for (i = 4; i <= 7; i++)
field[i].checked = true;
}
else 
if (field[3].checked == false) {
for (i = 4; i <= 7; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[3].checked = false;
}
}
function checkMetro2(field, i) {
if (i == 8) { 
if (field[8].checked == true) {
for (i = 9; i <= 17; i++)
field[i].checked = true;
}
else 
if (field[8].checked == false) {
for (i =9 ; i <= 17; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[8].checked = false;
}
}

function checkMetro3(field, i) {
if (i == 18) { 
if (field[18].checked == true) {
for (i = 19; i <= 31; i++)
field[i].checked = true;
}
else 
if (field[18].checked == false) {
for (i = 19; i <= 31; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[18].checked = false;
}
}

function checkMetro4(field, i) {
if (i == 32) { 
if (field[32].checked == true) {
for (i = 33; i <= 38; i++)
field[i].checked = true;
}
else 
if (field[32].checked == false) {
for (i = 33; i <= 38; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[32].checked = false;
}
}

function checkMetro5(field, i) {
if (i == 39) { 
if (field[39].checked == true) {
for (i = 40; i <= 41; i++)
field[i].checked = true;
}
else 
if (field[39].checked == false) {
for (i = 40; i <= 41; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[39].checked = false;
}
}

function checkPr(field, i) {
if (i == 0) { 
if (field[0].checked == true) {
for (i = 1; i <= 6; i++)
field[i].checked = false;
}
  }
else{
field[0].checked = false;
}
}

function checkBd(field, i) {
if (i == 0) { //Bedroom
if (field[0].checked == true) {
for (i = 1; i <= 5; i++)
field[i].checked = false;
}
  }
else{
field[0].checked = false;
}
}

function checkBt(field, i) {
if (i == 0) { //Bath
if (field[0].checked == true) {
for (i = 1; i <= 5; i++)
field[i].checked = false;
}
  }
else{
field[0].checked = false;
}
}
//  End -->