var height=0; var width=0;
if (self.screen) {
width = screen.width
height = screen.height
}
else if (self.java) {
var jkit = java.awt.Toolkit.getDefaultToolkit();
var scrsize = jkit.getScreenSize();
width = scrsize.width;
height = scrsize.height;
}


function init() {
IE = (document.all);
NC = (document.layers);
Opera = (document.getElementById);
} 

function hiddenLayer(ObjName) {
init();
if(IE) eval('document.all[ObjName].style.visibility = "hidden"');
if(NC) eval('document.layers[ObjName].visibility = "hidden"');
if(Opera) eval('document.getElementById(ObjName).style.visibility = "hidden"');
}

function showLayer(ObjName) {
init();
if(IE) eval('document.all[ObjName].style.visibility = "visible"');
if(NC) eval('document.layers[ObjName].visibility = "visible"');
if(Opera) eval('document.getElementById(ObjName).style.visibility = "visible"');
}