ns4 = (document.layers)? true:false
ie4 = (document.all)? true:false

if(ie4)

{
    document.write('<LINK REL="STYLESHEET" TYPE="TEXT/CSS" HREF="css/General_IE.css">')
}
else
{
    document.write('<LINK REL="STYLESHEET" TYPE="TEXT/CSS" HREF="css/General_IE.css">')
}