<!-- Begin
function checkMetro(field, i) {

if (i == 0) { //All areas.
if (field[0].checked == true) {
for (i = 1; i <= 37; i++)
field[i].checked = true;
}
else 
if (field[0].checked == false) {
for (i = 1; i <= 37; i++)
field[i].checked = false;
    }
  }
else{
field[0].checked = false;
}
}

function checkMetro1(field, i) {
if (i == 1) { //
if (field[1].checked == true) {
for (i = 2; i <= 6; i++)
field[i].checked = true;
}
else 
if (field[1].checked == false) {
for (i = 2; i <= 6; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[1].checked = false;
}
}
function checkMetro2(field, i) {
if (i == 7) { 
if (field[7].checked == true) {
for (i = 8; i <= 9; i++)
field[i].checked = true;
}
else 
if (field[7].checked == false) {
for (i =8 ; i <= 9; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[7].checked = false;
}
}
function checkMetro3(field, i) {
if (i == 10) { 
if (field[10].checked == true) {
for (i = 11; i <= 16; i++)
field[i].checked = true;
}
else 
if (field[10].checked == false) {
for (i = 11; i <= 16; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[10].checked = false;
}
}

function checkMetro4(field, i) {
if (i == 17) { 
if (field[17].checked == true) {
for (i = 18; i <= 22; i++)
field[i].checked = true;
}
else 
if (field[17].checked == false) {
for (i = 18; i <= 22; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[17].checked = false;
}
}
function checkMetro5(field, i) {
if (i == 23) { 
if (field[23].checked == true) {
for (i = 24; i <= 31; i++)
field[i].checked = true;
}
else 
if (field[23].checked == false) {
for (i = 24; i <= 31; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[23].checked = false;
}
}
function checkMetro6(field, i) {
if (i == 32) { 
if (field[32].checked == true) {
for (i = 33; i <= 37; i++)
field[i].checked = true;
}
else 
if (field[32].checked == false) {
for (i = 33; i <= 37; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[32].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 -->