body width, height [cross browsing]

getBodyWidth: function () {

var IEWidth = document.body.clientWidth;

var FFWidth = document.documentElement.clientHeight;

var bodyWidth = FFWidth>IEWidth?FFWidth:IEWidth;

return bodyWidth;

},

getBodyHeight: function () {

var IEHeight = document.body.clientHeight;

var FFHeight = document.documentElement.clientHeight;

var bodyHeight = FFHeight>IEHeight?FFHeight:IEHeight;

return bodyHeight;

}