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下面是JS脚本(floatdivjs) /*====================================================================== 浮动块支持脚本 DESIGN BY : 彭国辉 DATE: SITE: EMAIL: ======================================================================*/ var alLeft = alCenter = alRight = ; //水平对齐方式 var alTop = alMiddle = alBottom = ; //垂直对齐方式 var f = new Array(); var cnt = ; function floatDiv(objId align vAlign x y smooth) { /*浮动块对象 数据结构 objId 对象ID align 水平对齐方式枚举型 vAlign垂直对齐方式枚举型内容 x y xy座标整型 smooth平滑移动布尔型 */ thisobjId = objId; thisalign = align; thisvAlign = vAlign; thisx = x; thisy = y; thissmooth = smooth; } function addDiv(objId align vAlign x y smooth) { //添加浮动块 f[cnt++] = new floatDiv(objId align vAlign x y smooth); } function floatMove() { //重新定位各块位置 var objX objY; if (documentall) { var d = documentbody; //status = scrollLeft:+f[]objIdstylepixelTop+| offsetWidth:+doffsetWidth; for (var i=; i<flength; i++) { switch (f[i]align) { case alLeft : objX = dscrollLeft + f[i]x; break; case alCenter: objX = dscrollLeft + Mathceil((doffsetWidth f[i]objIdoffsetWidth)/) + f[i]x; break; case alRight : objX = dscrollLeft + doffsetWidth f[i]x f[i]objIdoffsetWidth ; break; //减滚动条 } switch (f[i]vAlign) { case alTop : objY = dscrollTop + f[i]y; break; case alMiddle: objY = dscrollTop + Mathceil((doffsetHeight f[i]objIdoffsetHeight)/) + f[i]y; break; case alBottom: objY = dscrollTop + doffsetHeight f[i]y f[i]objIdoffsetHeight; break; } if (f[i]smooth) smoothMove(f[i]objId objX objY); else { f[i]objIdstylepixelLeft = objX; f[i]objIdstylepixelTop = objY; } } } if (documentlayers) { for (var i=; i<flength; i++) { var objId = f[i]objId; switch (f[i]align) { case alLeft : objX = pageXOffset + f[i]x; break; case alCenter: objX = pageXOffset + Mathceil((windowinnerWidthobjIdwidth)/) + f[i]x; break; case alRight : objX = pageXOffset + windowinnerWidth f[i]x documentobjIdwidth; break; } switch (f[i]vAlign) { case alTop : objY = pageYOffset + f[i]y; break; case alMiddle: objY = pageYOffset + Mathceil(windowinnerHeight/) + f[i]y; break; case alBottom: objY = pageYOffset + windowinnerHeight f[i]y documentobjIdheight; break; } if (t[i]smooth) smoothMove(f[i]objId objX objY); else { documentobjIdleft = objX; documentobjIdtop = objY; } } } setTimeout(floatMove();); } function smoothMove(obj x y) { var percent; if (documentall) { percent = * (x objstylepixelLeft); if (percent > ) percent = Mathceil(percent); else percent = Mathfloor(percent); objstylepixelLeft += percent; percent = * (y objstylepixelTop); if (percent > ) percent = Mathceil(percent); else percent = Mathfloor(percent); objstylepixelTop += percent; } if (documentlayers) { percent = * (x documentobjIdleft); if (percent > ) percent = Mathceil(percent); else percent = Mathfloor(percent); documentobjIdleft += percent; percent = * (y documentobjIdtop); if (percent > ) percent = Mathceil(percent); else percent = Mathfloor(percent); documentobjIdtop += percent; } } setTimeout(floatMove();); 调用例子 <script language=javascript src=lib/floatdivjs></script> <script language=javascript> if (navigatorappName == Netscape) { documentwrite(<layer id=ad_hr top= width= height=><a href= target=_blank><img src=ad/hrgif width= height= border=></a></layer>); } else { documentwrite(<div id=ad_hr style=position: absolute;width:;top:;left:;visibility: visible;zindex: ><a href= target=_blank><img src=ad/hrgif width= height= border=></a></div>); } addDiv(ad_hr alRight alTop true); </script> |
