<!-- Begin
function checkMetro(field, i) {

if (i == 0) { //All areas.
if (field[0].checked == true) {
for (i = 1; i <= 19; i++)
field[i].checked = true;
}
else 
if (field[0].checked == false) {
for (i = 1; i <= 19; i++)
field[i].checked = false;
    }
  }
else{
field[0].checked = false;
}
}

function checkMetro1(field, i) {
if (i == 2) { //
if (field[2].checked == true) {
for (i = 3; i <= 4; i++)
field[i].checked = true;
}
else 
if (field[2].checked == false) {
for (i = 3; i <= 4; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[2].checked = false;
}
}
function checkMetro2(field, i) {
if (i == 5) { 
if (field[5].checked == true) {
for (i = 6; i <= 10; i++)
field[i].checked = true;
}
else 
if (field[5].checked == false) {
for (i =6 ; i <= 10; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[5].checked = false;
}
}
function checkMetro3(field, i) {
if (i == 11) { 
if (field[11].checked == true) {
for (i = 12; i <= 14; i++)
field[i].checked = true;
}
else 
if (field[11].checked == false) {
for (i = 12; i <= 14; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[11].checked = false;
}
}

function checkMetro4(field, i) {
if (i == 15) { 
if (field[15].checked == true) {
for (i = 16; i <= 19; i++)
field[i].checked = true;
}
else 
if (field[15].checked == false) {
for (i = 16; i <= 19; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[15].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 -->