pro.html
#table {
border-collapse: collapse;
border: 1px solid black;
}
#table tr td {
border-spacing: 0px;
border: 1px solid black;
}
var str = "1,2,3,4,5";
var array = str.split (/\,/g);
for ( var i = 0; i < array.length / 2; i++)
{
var temp = array[i];
array[i] = array[array.length - i - 1];
array[array.length - i - 1] = temp;
}
var result = array.join ('-');
document.write (result);
