var url = "http://www.alsforums.com/"
var who = "ALSforums.com - Your best resource for information, support, and help with ALS and MND"

var ver = navigator.appName
var num = parseInt(navigator.appVersion)

function bookmark () {
	if ((ver == "Microsoft Internet Explorer")&&(num >= 4)) {
		window.external.AddFavorite (url,who);
	}
	else {
		alert ('Please use your browsers bookmark feature. (Ctrl+D) in Netscape');
	}
	return (false);
}

//for hiding corner graphic if width is small so that user doesn't have problems clicking links
function getBrowserWidth(){
	if (window.innerWidth){return window.innerWidth;}  
	else if (document.documentElement && document.documentElement.clientWidth != 0){return document.documentElement.clientWidth;    }
	else if (document.body){return document.body.clientWidth;}      
	return 0;
}

//addEvent() by John Resig
function addEvent( obj, type, fn ){ 
   if (obj.addEventListener){ 
      obj.addEventListener( type, fn, false );
   }
   else if (obj.attachEvent){ 
      obj["e"+type+fn] = fn; 
      obj[type+fn] = function(){ obj["e"+type+fn]( window.event ); } 
      obj.attachEvent( "on"+type, obj[type+fn] ); 
   } 
} 

//Run cornerShowHide function when page loads and when it resizes.
addEvent(window, 'load', cornerShowHide);
addEvent(window, 'resize', cornerShowHide);

function cornerShowHide(){
	var browserName=navigator.appName; 
	if (browserName=="Microsoft Internet Explorer") {
	    var browserWidth = getBrowserWidth();
    	var obj = document.getElementById('corneradvert');
	    if (browserWidth < 770){obj.style.display = "none";}
		else {obj.style.display = "block";}
	}
}