Make an XML which doesn't work

paletter.js

var finalxml = "<?xml version=\"1.0\"?>\n";
finalxml += "<palette guid=\"";
var guid = '00000000-0000-0000-0000-000000000000';
finalxml += guid;
finalxml += '" name="Variazioni di quadricromia"><colors><page>'
//colori
var m,y,k;
//esempio: <color cs="CMYK" tints="0,0,0,1"/>
//<color tints="0.0431373,0.796078,0.745098,0.0431373" cs="CMYK"/>
for (var c = 0; c <= 1; c+=0.2)
{
  for ( m = 0; m <= 1; m+=0.2)
  {
    for ( y = 0; y <= 1; y+=0.2)
    {
		for ( k = 0; k <= 0.8; k+=0.2)
		{
		  finalxml+='<color cs="CMYK" tints="'+c+','+m+','+y+','+k+'"/>';
		}
    }
  }
}
//chiusura
finalxml += '</page></colors></palette>';
console.log(finalxml);