function init() {
    var x=1;
}

function getObj(name) {
  if (document.getElementById) {
	this.obj = document.getElementById(name);
	this.style = document.getElementById(name).style;
  } else if (document.all) {
    this.obj = document.all[name];
	this.style = document.all[name].style;
  } else if (document.layers) {
	this.obj = document.layers[name];
	this.style = document.layers[name];
  }
}

function changeClass(objid,classname) {
    var o = new getObj(objid);
    o.obj.className = classname;
}

function chDisplay(obj,display) {
  var o = new getObj(obj);
  if (display == 'change') {
  	if (o.style.display != 'none') o.style.display = 'none';
	else o.style.display = '';
  }
  else {
  	o.style.display=display;
  }
}

function getHeight() {
  var screenH = 768;
  if (parseInt(navigator.appVersion)>3) {
    screenW = screen.width;
    screenH = screen.height;
  }
  else if (navigator.appName == "Netscape" && parseInt(navigator.appVersion)==3 && navigator.javaEnabled()) {
    var jToolkit = java.awt.Toolkit.getDefaultToolkit();
    var jScreenSize = jToolkit.getScreenSize();
	screenH = jScreenSize.height;
  }
				 
  return screenH;
}