function scrollTop() //浏览器滚动条位置
{
	var scrollTop;
	if (document.documentElement && document.documentElement.scrollTop){
	   scrollTop = document.documentElement.scrollTop;
	}else if (document.body){
	   scrollTop = document.body.scrollTop;
	}else if (window.pageYOffset){
	   scrollTop = window.pageYOffset;
	}
	return scrollTop;
}

function CheckUIElements()
{
	if (parseInt(navigator.appVersion)>3) {
		if (navigator.appName=="Netscape") {
			winW = window.innerWidth;
			winH = window.innerHeight;
		}
		if (navigator.appName.indexOf("Microsoft")!=-1) {
			winW = document.documentElement.clientWidth;
			winH = document.documentElement.clientHeight;
		}
	}
	
	var browser=navigator.appName;
	var D1 = document.getElementById('warning');
	var yMenu1From, yMenu1To, yOffset, timeoutNextCheck;
	var wndWidth = parseInt(document.body.clientWidth);
	
	var s = scrollTop();
		yMenu1From   = parseInt (D1.style.top, 10);
		yMenu1To     = s + 350; //
	timeoutNextCheck = 100;
	if ( yMenu1From != yMenu1To ) {
		yOffset = Math.ceil( Math.abs( yMenu1To - yMenu1From ) / 20 );
		if ( yMenu1To < yMenu1From )
				yOffset = -yOffset;
		D1.style.top = parseInt (D1.style.top, 10) + yOffset;
		if( browser=="Netscape" ){
			D1.style.top = parseInt (D1.style.top, 10) + yOffset + 'px';
		}
		timeoutNextCheck = 10;
	}
	
	D1.style.left = ( winW / 2 ) + 228;
	if( browser=="Netscape" ){
		D1.style.left = ( winW / 2 ) + 222 + 'px';
	}
	
	setTimeout ("CheckUIElements()", timeoutNextCheck);
}

function MovePosition()
{
	if (parseInt(navigator.appVersion)>3) {
		if (navigator.appName=="Netscape") {
			winW = window.innerWidth;
			winH = window.innerHeight;
		}
		if (navigator.appName.indexOf("Microsoft")!=-1) {
			winW = document.documentElement.clientWidth;
			winH = document.documentElement.clientHeight;
		}
	}
	var browser=navigator.appName;
	var D1 = document.getElementById('warning');
	
	var s = scrollTop();
	D1.style.top = s + 350;
	if( browser=="Netscape" ){
		D1.style.top = s + 350 + 'px';
	}
	
	D1.style.left = ( winW / 2 ) + 228;
	if( browser=="Netscape" ){
		D1.style.left = ( winW / 2 ) + 222;
	}
	
	D1.style.visibility = "visible";
	CheckUIElements();
	return true;
}