Антон Щербаков

public static function distance($_y1, $_x1, $_y2, $_x2)
{
	$pi      =                   pi();
	$c_A     =                6378137;
	$c_a     =      1 / 298.257223563;
	$c_e2    = 2 * $c_a - $c_a * $c_a;
	
	$fSinB1  = sin($_y1    * $pi / 180);
	$fCosB1  = cos($_y1    * $pi / 180);
	$fSinL1  = sin($_x1    * $pi / 180);
	$fCosL1  = cos($_x1    * $pi / 180);
	
	$fSinB2  = sin($_y2    * $pi / 180);
	$fCosB2  = cos($_y2    * $pi / 180);
	$fSinL2  = sin($_x2    * $pi / 180);
	$fCosL2  = cos($_x2    * $pi / 180);
	
	$N1 = $c_A / sqrt( 1 - $c_e2 * $fSinB1 * $fSinB1 );
	
	$X1 = $N1 * $fCosB1 * $fCosL1;
	$Y1 = $N1 * $fCosB1 * $fSinL1;
	$Z1 = ( 1 - $c_e2 ) * $N1 * $fSinB1;
	
	$N2 = $c_A / sqrt( 1 - $c_e2 * $fSinB2 * $fSinB2 );
	
	$X2 = $N2 * $fCosB2 * $fCosL2;
	$Y2 = $N2 * $fCosB2 * $fSinL2;
	$Z2 = ( 1 - $c_e2 ) * $N2 * $fSinB2;
	
	$D = sqrt( ( $X1 - $X2 ) * ( $X1 - $X2 ) + ( $Y1 - $Y2 ) * ( $Y1 - $Y2 ) + ( $Z1 - $Z2 ) * ( $Z1 - $Z2 ) );
	$R = $N1;
	
	return 2 * $R * asin( 0.5 * $D / $R );
}

var width_container = tag_list.outerWidth();
console.log(width_container);

<?php if ($arFields[$key]['type'] == 'text' )
{echo ' ';}
else
{echo '' . $_POST[$key] . '';}
?>

<?php if ($arFields[$key]['type'] == 'text' ) : ?>
    <input size="40" type="<?=$arFields[$key]['type']?> name="<?=$key . ' value ="' . $_POST[$key] ?>">
  <?php else: ?> 
    <textarea rows="10" cols="35" name="<?=$key?>"  ><?=$_POST[$key]?></textarea>
  <?php endif; ?>

<?php foreach($fff as $key=>$value): ?>
тут html
<?php endforeach; ?>

<?php	
    } 
  ?>

var result = classes.split(' ').filter(function(substr) {
	return substr.indexOf('-vol-') < 0;
}).join(' ');

var result = classes.replace(/\s([^\s]+?)-vol-([^\s$]+)/g, '');

var result = classes.replace(/\s([^\s]+?)-vol-([^\s$]+?)\b/g, '');