Display Sizes (Screen vs Available) [BASIC]

As a programmer, often you need to either know the size of the user’s screen (basically their resolution); or the more important available space inside their browser where you can display your content. You avoid less clipping and display issues if you can distinguish the two.

function getWidth(){
	if(document.all){
        	return document.body.clientWidth;
	}else{
        	return innerWidth;
	}
};

function getHeight(){
	if(document.all){
        	return document.body.clientHeight;
    	}else{
        	return innerHeight;
    	}
};
document.writeln("Screen Size : " + screen.width + " x " + screen.height + " (Includes Everything on Screen)<br/>");
document.writeln("Width: " + getWidth() + " x  Height: " + getHeight() + " (What's Available INSIDE the Browser)");

DEMO | DOWNLOAD