Crossbrowser innerHeight

innerheight.js

(function(){
    if(window.innerWidth!= undefined){
        return [window.innerWidth, window.innerHeight];
    }
    else{
        var B= document.body, 
        D= document.documentElement;
        return [Math.max(D.clientWidth, B.clientWidth),
        Math.max(D.clientHeight, B.clientHeight)];
    }
})()[1];