function getWindowSize() {

	if (parseInt(navigator.appVersion)>3) {
	 if (navigator.appName=="Netscape") {
	  winW = window.innerWidth;
	  winH = window.innerHeight;
	 }
	 if (navigator.appName.indexOf("Microsoft")!=-1) {
	  winW = document.body.offsetWidth;
	  winH = document.body.offsetHeight;
	 }
	}
	
	alert(winW+' x '+winH);

}

function push() {
	
	// iba pre IE6
	if (!window.XMLHttpRequest) {
		var h = document.getElementById('main').scrollHeight-101;
		document.getElementById('footer').style.top=h;
	}
	
	
}