function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      if (oldonload) {
        oldonload();
      }
      func();
    }
  }
}

function popup(mylink, windowname)
{
	if (! window.focus) return true;
	var href;
	if (typeof(mylink) == 'string')
		href=mylink;
	else
		href=mylink.href;
        var contentWin = window.open(href, windowname, 'width=1000,height=700,scrollbars=yes,toolbar=yes, menubar=yes');
	return false;
}

function popupDoc(mylink, windowname)
{
	var href;
	if (typeof(mylink) == 'string')
		href=mylink;
	else
		href=mylink.href;
        var contentWin = window.open(href, windowname, 'width=900,height=700,scrollbars=yes,toolbar=yes, menubar=yes');
	
	return false;
}

function showUp(mylink, windowname) 
{
	// if (navigator.appName == "Microsoft Internet Explorer")
	// {
    	var win = new Window({className: "alphacube", title: windowname, 
    	top:20, left:20, width:1000, height:740, 
    	url: mylink, showEffectOptions: {duration:1.0}})
    	win.show();  
	// } 
	// else {
        //popup(mylink, windowname);	
	//}
};

function showDoc(mylink, windowname)
{
	if (contentWin != null) {
		contentWin.show();
	}
	else {
		contentWin = new Window({className: "alphacube", title: windowname, 
    		top:0, left:0, width:1024, height:768, 
    		url: mylink, showEffectOptions: {duration:1.0}})
			// contentWin.setContent('test_content', true, true)
		contentWin.show();	
	}
}