function remplacer(a) 
{ 
var tmp; 
tmp = ""; 
  
for(var i = 0; i < a.length; i++) 
{ 
tmp = tmp + a.charAt(i); 
  
    if (a.charAt(i) == "+") 
    { 
    tmp = tmp.replace("+"," "); 
    } 
} 
return tmp;
}