browserName=navigator.appName; 
browserVer=parseInt(navigator.appVersion);
browser = browserName+browserVer;

if (browser=="Netscape4") {

   

  if ((browserName=="Netscape" && browserVer>=3) || (browserName=="Microsoft Internet Explorer" && browserVer>=4))    
  version="n3";
  else
    version="n2";

  if (version=="n3")

 {
// alert(browser);  
var failed;     
     // alert("Yes");

imx0 = new Image() ;
imx1 = new Image() ;
imx2 = new Image() ;
imx3 = new Image() ;
imx4 = new Image() ;
imx5 = new Image() ;
imx6 = new Image() ;
imx7 = new Image() ;
imx8 = new Image() ;
imx9 = new Image() ;
imx10 = new Image() ;
imx11 = new Image() ;
imx12 = new Image() ;
imx13 = new Image() ;
imx14 = new Image() ;
imx15 = new Image() ;
imx16 = new Image() ;
imx17 = new Image() ;
imx18 = new Image() ;
imx19 = new Image() ;
imx20 = new Image() ;


  
  imx1.src="http://hal.chem.uwm.edu/nmr/pictures/mouseover_equipment_text.gif"  
  imx2.src="http://hal.chem.uwm.edu/nmr/pictures/mouseover_staff_text.gif"  
  imx3.src="http://hal.chem.uwm.edu/nmr/pictures/mouseover_local_text.gif"  
  imx4.src="http://hal.chem.uwm.edu/nmr/pictures/mouseover_chem781_text.gif" 
  imx5.src="http://hal.chem.uwm.edu/nmr/pictures/mouseover_links_text.gif" 
  imx6.src="http://hal.chem.uwm.edu/nmr/pictures/equipment_text.gif" 
  imx7.src="http://hal.chem.uwm.edu/nmr/pictures/staff_text.gif" 
  imx8.src="http://hal.chem.uwm.edu/nmr/pictures/local_text.gif"
  imx9.src="http://hal.chem.uwm.edu/nmr/pictures/chem781_text.gif"
  imx10.src="http://hal.chem.uwm.edu/nmr/pictures/links_text.gif"
  imx11.src="http://hal.chem.uwm.edu/nmr/pictures/mouseover_equipmentinfo.gif"
  imx12.src="http://hal.chem.uwm.edu/nmr/pictures/mouseover_staffinfo.gif"
  imx13.src="http://hal.chem.uwm.edu/nmr/pictures/mouseover_localinfo.gif"
  imx14.src="http://hal.chem.uwm.edu/nmr/pictures/mouseover_chem781info.gif"
  imx16.src="http://hal.chem.uwm.edu/nmr/pictures/equipment.gif"
  imx17.src="http://hal.chem.uwm.edu/nmr/pictures/holger.gif"
  imx18.src="http://hal.chem.uwm.edu/nmr/pictures/1d_2d_3dnmr.gif"
  imx19.src="http://hal.chem.uwm.edu/nmr/pictures/projects.gif"
  imx20.src="http://hal.chem.uwm.edu/nmr/pictures/earth.gif"

  var chem781 = '<img NAME="picture4" SRC="pictures/projects.gif" ALT="Chem 781" BORDER=0 height=216 width=200>'+
'<BR><IMG NAME="menu4" SRC="pictures/chem781_text.gif" BORDER=0 ALT="Chem 781" HEIGHT="24"></a>'
  var chem781pressed = '<H1>Chemistry 781</h1>Information on the graduate course "Nuclear Magnetic'+
' Spectroscopy:<BR> Theory and Practice<BR> '+
'<LI>Syllabus<LI>Course Outline<LI>Lecturenotes<LI>Handouts<LI>Solutions to problems'

}		
}
/* function xDisplay(e, style) {
  if(!(e=xGetElementById(e))) {failed= 'yes';}
  else {
  if(e.style && xDef(e.style.display)) {
          e.style.display = style;
          if (!(e.style.display == style)) failed='yes';
  }
  else if(xDef(e.display)) {
     e.display = style;
     if (!(e.display==style)) failed='yes';
  }
  else {failed=='yes';}
}
} */
function xIgnore(e) {
  if(!(e=xGetElementById(e))) return;
  if(e.style && xDef(e.style.display)) e.style.display='none';
  else if(xDef(e.display)) e.display='none';
}
function menushow(layerhide,id)
{
   layershow = layerhide+'menu';
   layertext = layerhide+'text';
   mylayershow = xGetElementById(layershow);
   mylayerhide = xGetElementById(layerhide);
   mytext = xGetElementById(layertext);
//  xIgnore(mylayershow)
   xDisplay(mylayershow, 'none')
   xDisplay(mylayerhide, 'none')
   xDisplay(mylayershow, 'block')
   xColor(mytext,'yellow')
   xBackground(mytext,'black') 
   if (failed == 'yes') {press(id);}

}
function menuhide(layershow,id) 
{
  layerhide = layershow+'menu';
  layertext = layershow+'text'; 
  mylayershow = xGetElementById(layershow);
  mylayerhide = xGetElementById(layerhide);
  mytext = xGetElementById(layertext);
//  xIgnore(mylayershow)
  xDisplay(mylayershow, 'none')
  xDisplay(mylayerhide, 'none')
  xDisplay(mylayershow, 'block')
  xColor(mytext,'')
  xBackground(mytext,'')
  if (failed == 'yes') {press(id);}
}
function pulldown(lyr,disp) {
   mylayer = xGetElementById(lyr);
   pd = 'pd'+lyr;
   anchor = 'a'+lyr;
   mylayerpd=xGetElementById(pd);
   mylayeranc=xGetElementById(anchor);
  //  xDisplay(mylayer,disp );
  if (disp == 'show') {
            xDisplay(mylayerpd,'block');  // xShow(mylayer);
            xColor(mylayeranc,'yellow');
            xBackground(mylayer,'black');
  }
  if (disp == 'hide'){ 
           xDisplay(mylayerpd,'none'); // xHide(mylayer);
           xColor(mylayeranc,'');
           xBackground(mylayer,'');
   }
//  text = lyr+' '+disp+' '+mylayer;
//  alert(text) 
}
function selectstyle() {
if (document.layers){
  document.write('<LINK REL=StyleSheet type="text/css" HREF="/nmr/nmrlabn4.css">');
  }
else {
  document.write('<LINK REL=StyleSheet type="text/css" HREF="/nmr/nmrlab.css">');
  }
}
function press(num) 

{

browserName=navigator.appName; 
browserVer=parseInt(navigator.appVersion);

  if ((browserName=="Netscape" && browserVer>=3) || (browserName=="Microsoft Internet Explorer" && browserVer>=4))    
  version="n3";
  else
    version="n2";


{
   if (version=="n3")
    
        {

if (num == 1 )  document.images['menu1'].src=imx1.src ;

if (num == 2 )  document.images['menu2'].src=imx2.src ;

if (num == 3 )  document.images['menu3'].src=imx3.src ;

if (num == 4 )  document.images['menu4'].src=imx4.src ;

if (num == 5 )  document.images['menu5'].src=imx5.src ;

if (num == 6 )  document.images['menu1'].src=imx6.src ;

if (num == 7 )  document.images['menu2'].src=imx7.src ;

if (num == 8 )  document.images['menu3'].src=imx8.src ;

if (num == 9 )  document.images['menu4'].src=imx9.src ;

if (num == 10 )  document.images['menu5'].src=imx10.src ;

if (num == 11 )  document.images['picture1'].src=imx11.src ;

if (num == 12 )  document.images['picture2'].src=imx12.src ;

if (num == 13 )   document.images['picture3'].src=imx13.src ;

if (num == 14 )   document.images['picture4'].src=imx14.src ;

if (num == 16 )  document.images['picture1'].src=imx16.src ;

if (num == 17 )  document.images['picture2'].src=imx17.src ;

if (num == 18 )  document.images['picture3'].src=imx18.src ;

if (num == 19 )  document.images['picture4'].src=imx19.src ;

if (num == 20 )  document.images['picture5'].src=imx20.src ;
}

}

}