var bNetscape4plus = (navigator.appName == "Netscape" && navigator.appVersion.substring(0,1) >= "4");
var bExplorer4plus = (navigator.appName == "Microsoft Internet Explorer" && navigator.appVersion.substring(0,1) >= "4");

function CheckUIElements(){
		
        var yMenuFrom, yMenuTo, yButtonFrom, yButtonTo, yOffset, timeoutNextCheck, menuTop;

        if ( bNetscape4plus ) { 
			
                yMenuFrom   = parseInt (document.getElementById("right_sky01").style.top, 10);
                yMenuTo     = window.pageYOffset;
               
        }
        else if ( bExplorer4plus ) {
                yMenuFrom   = parseInt (document.getElementById("right_sky01").style.top, 10);
                yMenuTo     = document.body.scrollTop + 0; //À§Ä¡°ªÁ¶Àý
        }

        timeoutNextCheck = 200;

        if ( Math.abs (yButtonFrom - (yMenuTo + 152)) < 6 && yButtonTo < yButtonFrom ) {
                setTimeout ("CheckUIElements()", timeoutNextCheck);
                return;
        }

        
        if ( yMenuFrom != yMenuTo ) {
                yOffset = Math.ceil( Math.abs( yMenuTo - yMenuFrom ) / 20 );
                if ( yMenuTo < yMenuFrom )
                        yOffset = -yOffset;

				menuTop = parseInt (document.getElementById("right_sky01").style.top, 10) + yOffset;
				
                if ( bNetscape4plus )
                    document.getElementById("right_sky01").style.top =menuTop;
                else if ( bExplorer4plus )
                    document.getElementById("right_sky01").style.top = menuTop;

                timeoutNextCheck = 10;
                
        }

        setTimeout ("CheckUIElements()", timeoutNextCheck);
}

function OnLoad()
{
    var y;
    if ( top.frames.length )
    if ( bNetscape4plus ) {
    
        document.getElementById("right_sky01").style.top = window.pageYOffset;
        document.getElementById("right_sky01").visibility = "visible";
    }
    else if ( bExplorer4plus ) {
        document.getElementById("right_sky01").style.top = document.body.scrollTop + 135;
        document.getElementById("right_sky01").style.visibility = "visible";
    }
    CheckUIElements();
    return true;
}
OnLoad();