// JavaScript Document
var stmnGAP1 = 10;
var stmnGAP2 = 35;  //停下时的top
var stmnBASE = 10; //初始化时的top
var stmnActivateSpeed = 1; 
var stmnScrollSpeed = 2; 

try
{
    document.execCommand("BackgroundImageCache",false,true); //有点浏览器不支持这句
}
catch(exception)
{
}

function WriteEmbed(emb_id){ 
    document.write(document.getElementById(emb_id).value);
} 

function RefreshStaticMenu()
{
	var stmnStartPoint, stmnEndPoint, stmnRefreshTimer;

    stmnStartPoint = parseInt(STATICMENU.style.top, 10);
    stmnEndPoint = document.body.scrollTop + stmnGAP2;
    if (stmnEndPoint < stmnGAP1) stmnEndPoint = stmnGAP1;

    if ( stmnStartPoint != stmnEndPoint ) {
                        stmnScrollAmount = Math.ceil( Math.abs( stmnEndPoint - stmnStartPoint ) / 15 );
                        STATICMENU.style.top = parseInt(STATICMENU.style.top, 10) + ( ( stmnEndPoint<stmnStartPoint ) ? -stmnScrollAmount : stmnScrollAmount );
                        stmnRefreshTimer = stmnScrollSpeed;
                }
                                         else {
                        stmnRefreshTimer = stmnActivateSpeed;
     }

                setTimeout ("RefreshStaticMenu();", stmnRefreshTimer);
}
		
function InitializeStaticMenu()
{
	STATICMENU.style.top = document.body.scrollTop + stmnBASE;
    RefreshStaticMenu();
    //STATICMENU.style.left = stmnLEFT;
}