tmt_css_NN = "style/style_2.css";
tmt_css_IE = "style/style_1.css";

if(document.layers){
   document.write("<link rel='stylesheet' href='" + tmt_css_NN + "' type='text/css'>");
}
else if(document.all){
   document.write("<link rel='stylesheet' href='" + tmt_css_IE + "' type='text/css'>");
}
else if(document.getElementById&&!document.all){
   document.write("<link rel='stylesheet' href='" + tmt_css_IE + "' type='text/css'>");
}