function convertSpaces(str1) {
var out = "/rides.php?height=", flag = 0;
for (i = 0; i < str1.length; i++) {
if (str1.charAt(i) != " ") {
out += str1.charAt(i);
flag = 0;
}
else {
if(flag == 0) {
out += "+";
flag = 1;
      }
   }
}
return out;
}