复制代码 代码如下:

var str="客服";

var objFT=new FloatT("FloatMenu1",str,942,137,125,200,80,10);

objFT.FloatRun();

//js跟随滚动条滚动 浮动

//pObjName:html 元素ID

//pText:html 元素内容

//其它自己看

function FloatT(pObjName,pText,pstmnLEFT,pstmnGAP1,pstmnGAP2,pstmnBASE,pstmnActivateSpeed,pstmnScrollSpeed)

{

var FloatMenu;

var stmnLEFT = pstmnLEFT;

var stmnGAP1 = pstmnGAP1;

var stmnGAP2 = pstmnGAP2;

var stmnBASE = pstmnBASE;

var stmnActivateSpeed = pstmnActivateSpeed;

var stmnScrollSpeed = pstmnScrollSpeed;

this.FloatRun=function(pObjName)

{

var newDiv=document.createElement("div");

newDiv.id=pObjName;

newDiv.innerHTML=pText;

newDiv.style.position="absolute";

document.body.appendChild(newDiv);

FloatMenu=document.getElementById(pObjName);

FloatMenu.style.display=="";

FloatMenu.style.top = document.documentElement.scrollTop + stmnBASE+"px";

FloatMenu.style.left = stmnLEFT+"px";

RefreshStaticMenu();

}

RefreshStaticMenu=function()

{

var stmnStartPoint,stmnEndPoint,stmnRefreshTimer;

stmnStartPoint = parseInt(FloatMenu.style.top, 10);

stmnEndPoint = document.documentElement.scrollTop + stmnGAP2;

if (stmnEndPoint < stmnGAP1) stmnEndPoint = stmnGAP1;

if(stmnStartPoint != stmnEndPoint)

{

stmnScrollAmount = Math.ceil(Math.abs(stmnEndPoint - stmnStartPoint) / 15 );

FloatMenu.style.top = parseInt(FloatMenu.style.top, 10) + ((stmnEndPoint<stmnStartPoint) ? -stmnScrollAmount : stmnScrollAmount)+"px";

stmnRefreshTimer = stmnScrollSpeed;

}

else

{

stmnRefreshTimer = stmnActivateSpeed;

}

setTimeout("RefreshStaticMenu();", stmnRefreshTimer);

}

}