Code that uses js to automatically determine the browser resolution

Copy codeThe Code is as follows: <script language = "JavaScript">
<! --
If (window. navigator. userAgent. indexOf ("MSIE")> = 1)
{
Var IE1024 = "";
Var IE800 = "";
Var IE1152 = "";
Var IEother = "";
ScreenWidth (IE1024, IE800, IE1152, IEother)
}
Else {
If (window. navigator. userAgent. indexOf ("Firefox")> = 1)
{
Var Firefox1024 = "";
Var Firefox800 = "";
Var Firefox1152 = "";
Var Firefoxother = "";
ScreenWidth (Firefox1024, Firefox800, Firefox1152, Firefoxother)
}
Else {
Var Other1024 = "";
Var Other800 = "";
Var Other1152 = "";
Var Otherother = "";
ScreenWidth (Other1024, Other800, Other1152, Otherother)
}
}
Function ScreenWidth (CSS1, CSS2, CSS3, CSS4 ){
If (screen. width = 1024) & (screen. height = 768 )){
SetActiveStyleSheet (CSS1 );
} Else {
If (screen. width = 800) & (screen. height = 600 )){
SetActiveStyleSheet (CSS2 );
} Else {
If (screen. width = 1152) & (screen. height = 864 )){
SetActiveStyleSheet (CSS3 );
} Else {
SetActiveStyleSheet (CSS4 );
}}}
}
Function setActiveStyleSheet (title ){
Document. getElementsByTagName ("link") [0]. href = "style/" + title;
}
// -->
</SCRIPT>