function init() {
	setKeyImage();
}
window.onload = init;

window.onresize = function(){
	setKeyImage();
}

function setKeyImage(){
	var winH = 0;
	var winW = 0;
	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;
	 }
	}
	if(winW <= "650"){
		document.getElementById("keyImage").style.left = (380+170) + "px"
	}else{
		document.getElementById("keyImage").style.left = (winW/2)+170 + "px";
	}
}