<!-- 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 <= 8; i++)
field[i].checked = true;
}
else 
if (field[3].checked == false) {
for (i = 4; i <= 8; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[3].checked = false;
}
}
function checkMetro2(field, i) {
if (i == 9) { 
if (field[9].checked == true) {
for (i = 10; i <= 14; i++)
field[i].checked = true;
}
else 
if (field[9].checked == false) {
for (i =10 ; i <= 14; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[9].checked = false;
}
}

function checkMetro3(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 checkMetro4(field, i) {
if (i == 20) { 
if (field[20].checked == true) {
for (i = 21; i <= 26; i++)
field[i].checked = true;
}
else 
if (field[20].checked == false) {
for (i = 21; i <= 26; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[20].checked = false;
}
}

function checkMetro5(field, i) {
if (i == 27) { 
if (field[27].checked == true) {
for (i = 28; i <= 31; i++)
field[i].checked = true;
}
else 
if (field[27].checked == false) {
for (i = 28; i <= 31; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[27].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 checkMetro7(field, i) {
if (i == 38) { 
if (field[38].checked == true) {
for (i = 39; i <= 41; i++)
field[i].checked = true;
}
else 
if (field[38].checked == false) {
for (i = 39; i <= 41; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[38].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 -->