var color='blue';
ccs =  '<link rel="stylesheet" type="text\/css" href=".\/'+color+'.css"\/>\n';
ccs += '<link rel="stylesheet" type="text\/css" href="..\/'+color+'.css"\/>\n';
ccs += '<link rel="stylesheet" type="text\/css" href="..\/..\/..\/'+color+'.css"\/>\n';
document.write(ccs);