$("body").html(String($('body').html()).replace(/([0-9]*[05])°\/([0-9]+)/g, '
<svg height="20" width="20" version="1.1">
<g transform="scale(0.2) rotate($1,50,50) rotate(180,50,50) translate(0,5)">
<path stroke-width="0" fill="black" d="m50,0 -20,30 16,-3 -3,63 14,0 -3,-63 16,3 -20,-30z">
</path>
</g>
</svg>
<vel>$2</vel>'));
$("vel").each(function( index ) {   
  speed=$( this ).text() ;  
  if(speed<5) {range='white'} 
  else if (speed<10){range='lightgreen'} 
  else if (speed<15){range='green'} 
  else if (speed<20){range='yellow'} 
  else if (speed<25){range='orange'} 
  else{range='red'}  
  $(this).parent().parent().parent().attr('style','background-color: '+range); 
});