브라우저 사이즈구하기, 스크린 사이즈구하기

var xWidth = 0;  

var xHeight = 0; 

function getWidth() {  

    xWidth = null;  

    if (window.screen != null)  

        xWidth = window.screen.width;  

  

    return xWidth;  

}  

function getHeight() {  

    xHeight = null;  

    if (window.screen != null)  

        xHeight = window.screen.height;  

  

  

    return xHeight;  

}  

function checkScreen(flag){  

if(flag == 'screen')

alert("screen width : " + getWidth() + ", screen height : " + getHeight() );

else

alert("frame width : " + document.body.clientWidth + ", frame height : " + document.body.clientHeight );

}

<a href="javascript:checkScreen('screen');">창가로 사이즈</a>