function rollmouseover(showhidden1, showhidden2, showhidden3, hideshow1, hideshow2, hideshow3)
{
if (document.getElementById)
{
// this is the way the standards work
var showhide = document.getElementById(showhidden1).style;
showhide.display = showhide.display? "":"inline";
showhide.zIndex = 2;

var showhide2 = document.getElementById(showhidden2).style;
showhide2.display = showhide2.display? "":"inline";
showhide2.zIndex = -2;

var showhide3 = document.getElementById(showhidden3).style;
showhide3.display = showhide3.display? "":"none";
showhide3.zIndex = 2;

var showhide4 = document.getElementById(hideshow1).style;
showhide4.display = showhide4.display? "":"none";
showhide4.zIndex = -2;

var showhide5 = document.getElementById(hideshow2).style;
showhide5.display = showhide5.display? "":"none";
showhide5.zIndex = -2;

var showhide6 = document.getElementById(hideshow3).style;
showhide6.display = showhide6.display? "":"none";
showhide6.zIndex = -2;
}
else if (document.all)
{
// this is the way old msie versions work
var showhide = document.all[showhidden1].style;
showhide.display = showhide.display? "":"inline";
showhide.zIndex = 2;

var showhide2 = document.all[showhidden2].style;
showhide2.display = showhide2.display? "":"inline";
showhide2.zIndex = -2;

var showhide3 = document.all[showhidden3].style;
showhide3.display = showhide3.display? "":"none";
showhide3.zIndex = 2;

var showhide4 = document.all[hideshow1].style;
showhide4.display = showhide4.display? "":"none";
showhide4.zIndex = -2;

var showhide5 = document.all[hideshow2].style;
showhide5.display = showhide5.display? "":"none";
showhide5.zIndex = -2;

var showhide6 = document.all[hideshow3].style;
showhide6.display = showhide6.display? "":"none";
showhide6.zIndex = -2;
}
else if (document.layers)
{
// this is the way nn4 works
var showhide = document.layers[showhidden1].style;
showhide.display = showhide.display? "":"inline";
showhide.zIndex = 2;

var showhide2 = document.layers[showhidden2].style;
showhide2.display = showhide2.display? "":"inline";
showhide2.zIndex = -2;

var showhide3 = document.layers[showhidden3].style;
showhide3.display = showhide3.display? "":"none";
showhide3.zIndex = 2;

var showhide4 = document.layers[hideshow1].style;
showhide4.display = showhide4.display? "":"none";
showhide4.zIndex = -2;

var showhide5 = document.layers[hideshow2].style;
showhide5.display = showhide5.display? "":"none";
showhide5.zIndex = -2;

var showhide6 = document.layers[hideshow3].style;
showhide6.display = showhide6.display? "":"none";
showhide6.zIndex = -2;
}
}