JS层移支示例代码

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD><TITLE>课程安排</TITLE> <STYLE type=text/css>LABEL {     CURSOR: hand; COLOR: lightblue; TEXT-DECORATION: underline } </STYLE> <SCRIPT LANGUAGE="JavaScript">  </SCRIPT> <META content="MSHTML 5.50.4134.600" name=GENERATOR></HEAD> <BODY onselectstart=return(false)> <SCRIPT language=JavaScript>     var newObj=null;     DragObject.prototype.bind=bindToCell;          //把拖动元素绑定到单元格     function bindToCell(cell){         if (cell==null) return;         this.cell=cell;         absoluteMove(this.element,cell,(cell.offsetWidth-this.element.offsetWidth)/2,(cell.offsetHeight-this.element.offsetHeight)/2);     }     //当完成拖动后,调整位置     function finishDrag(element){         var dragObj=getRegObj(element);         if (dragObj==null) return;         //按中点来计算位置         var pt=new Point(element.offsetWidth/2,element.offsetHeight/2);         pt.clientToScreen(element);         var oldZIndex=element.style.zIndex;         element.style.zIndex=-1000;         var cell=document.elementFromPoint(pt.x-document.body.scrollLeft,pt.y-document.body.scrollTop);         //拖动是否有效         if (cell!=null){             if (cell.tagName=="TD"){                 //如果放在单元格上,就进行调整                 var anotherDragObj=getDragObjectByCell(cell);                 if (anotherDragObj==null){                     dragObj.bind(cell);                 }                 else{                     //交换                     anotherDragObj.bind(dragObj.cell);                     dragObj.bind(cell);                 }             }             else{                 //如果不是放在单元格上,要查看是否属于DIV                 var div=getParent(cell,"DIV");                 if (div!=null){                     var anotherDragObj=getRegObj(div);                     if (anotherDragObj!=null){                         //如果是另一个DragObject,就交换                         var c=anotherDragObj.cell;                         anotherDragObj.bind(dragObj.cell);                         dragObj.bind(c);                     }                     else{                         dragObj.bind(dragObj.cell);                     }                 }                 else{                     dragObj.bind(dragObj.cell);                 }             }         }         else{             //如果不是单元格,就还原             dragObj.bind(dragObj.cell);         }         element.style.zIndex=oldZIndex;     } </SCRIPT> <FONT  style="FONT-SIZE: 12px; LEFT: 50px; WIDTH: 100px; POSITION: absolute; TOP: 43px; TEXT-ALIGN: center"  color=blue>待排课程  <TABLE id=LeftTable style="LEFT: 50px; POSITION: absolute; TOP: 60px"  cellSpacing=0 borderColorDark=white borderColorLight=black border=1>   <TBODY>   <TR>     <TD width=100 height=12>&nbsp;</TD>    <TR>     <TD width=100 height=12>&nbsp;</TD>    <TR>     <TD width=100 height=12>&nbsp;</TD>    <TR>     <TD width=100 height=12>&nbsp;</TD>    <TR>     <TD width=100 height=12>&nbsp;</TD>    <TR>     <TD width=100 height=12>&nbsp;</TD>    <TR>     <TD width=100 height=12>&nbsp;</TD>    <TR>     <TD width=100 height=12>&nbsp;</TD>    <TR>     <TD width=100 height=12>&nbsp;</TD>    <TR>     <TD width=100 height=12>&nbsp;</TD>    <TR>     <TD width=100 height=12>&nbsp;</TD>    <TR>     <TD width=100 height=12>&nbsp;</TD>    <TR>     <TD width=100 height=12>&nbsp;</TD>    <TR>     <TD width=100 height=12>&nbsp;</TD>    <TR>     <TD width=100 height=12>&nbsp;</TD>    <TR>     <TD width=100 height=12>&nbsp;</TD> </TR></TBODY></TABLE>     <FONT style="FONT-SIZE: 12px; LEFT: 220px; WIDTH: 150px; POSITION: absolute; TOP: 43px; TEXT-ALIGN: center" color=blue>已排课程(上午)  <TABLE id=RightTable style="LEFT: 220px; POSITION: absolute; TOP: 60px"  cellSpacing=0 borderColorDark=white borderColorLight=black border=1>   <TBODY>   <TR><TD width=150 height=20>&nbsp;</TD></TR>   <TR><TD width=150 height=20>&nbsp;</TD></TR>   <TR><TD width=150 height=20>&nbsp;</TD></TR>   <TR><TD width=150 height=20>&nbsp;</TD></TR>   </TBODY></TABLE>     <FONT style="FONT-SIZE: 12px; LEFT: 220px; WIDTH: 150px; POSITION: absolute; TOP: 153px; TEXT-ALIGN: center" color=blue>已排课程(下午)  <TABLE id=Table2 style="LEFT: 220px; POSITION: absolute; TOP: 170px"  cellSpacing=0 borderColorDark=white borderColorLight=black border=1>   <TBODY>   <TR><TD width=150 height=20>&nbsp;</TD></TR>   <TR><TD width=150 height=20>&nbsp;</TD></TR>   <TR><TD width=150 height=20>&nbsp;</TD></TR>   <TR><TD width=150 height=20>&nbsp;</TD></TR>   </TBODY></TABLE>     <FONT style="FONT-SIZE: 12px; LEFT: 220px; WIDTH: 150px; POSITION: absolute; TOP: 263px; TEXT-ALIGN: center" color=blue>已排课程(晚上)  <TABLE id=Table2 style="LEFT: 220px; POSITION: absolute; TOP: 280px"  cellSpacing=0 borderColorDark=white borderColorLight=black border=1>   <TBODY>   <TR><TD width=150 height=20>&nbsp;</TD></TR>   <TR><TD width=150 height=20>&nbsp;</TD></TR>   <TR><TD width=150 height=20>&nbsp;</TD></TR>   <TR><TD width=150 height=20>&nbsp;</TD></TR>   </TBODY></TABLE> <DIV id=1 style="WIDTH: 100px; CURSOR: hand; POSITION: absolute; HEIGHT: 12px"  align=center>语文</DIV> <SCRIPT language=JavaScript>             newObj=registerDrag(document.all("1"));             newObj.onDragEnd=finishDrag;             newObj.bind(document.all("LeftTable").rows(0).cells(0));         </SCRIPT> <DIV id=2 style="WIDTH: 100px; CURSOR: hand; POSITION: absolute; HEIGHT: 12px"  align=center>数学</DIV> <SCRIPT language=JavaScript>             newObj=registerDrag(document.all("2"));             newObj.onDragEnd=finishDrag;             newObj.bind(document.all("LeftTable").rows(1).cells(0));         </SCRIPT> <DIV id=3 style="WIDTH: 100px; CURSOR: hand; POSITION: absolute; HEIGHT: 12px"  align=center>物理</DIV> <SCRIPT language=JavaScript>             newObj=registerDrag(document.all("3"));             newObj.onDragEnd=finishDrag;             newObj.bind(document.all("LeftTable").rows(2).cells(0));         </SCRIPT> <DIV id=4 style="WIDTH: 100px; CURSOR: hand; POSITION: absolute; HEIGHT: 12px"  align=center>化学</DIV> <SCRIPT language=JavaScript>             newObj=registerDrag(document.all("4"));             newObj.onDragEnd=finishDrag;             newObj.bind(document.all("LeftTable").rows(3).cells(0));         </SCRIPT> <DIV id=5 style="WIDTH: 100px; CURSOR: hand; POSITION: absolute; HEIGHT: 12px"  align=center>英语</DIV> <SCRIPT language=JavaScript>             newObj=registerDrag(document.all("5"));             newObj.onDragEnd=finishDrag;             newObj.bind(document.all("LeftTable").rows(4).cells(0));         </SCRIPT> <DIV id=6 style="WIDTH: 100px; CURSOR: hand; POSITION: absolute; HEIGHT: 12px"  align=center>政治</DIV> <SCRIPT language=JavaScript>             newObj=registerDrag(document.all("6"));             newObj.onDragEnd=finishDrag;             newObj.bind(document.all("LeftTable").rows(5).cells(0));         </SCRIPT>  <SCRIPT language=JavaScript>     //重定位     function relocate(){         for (var i=0;i<drag_objects.length;i++){             drag_objects[i].bind(drag_objects[i].cell);         }     }          //提交到服务器     function saveChange(){         var lngOrder,lngModuleID;         var table=document.all("RightTable");         var lngIndex=0;         var strAction="";                  for (var i=0;i<table.rows.length;i++){             var row=table.rows(i);             for (var j=0;j<row.cells.length;j++){                 var cell=row.cells(j);                 var dragObj=getDragObjectByCell(cell);                 if (dragObj!=null){                     lngOrder=i*row.cells.length+j;                     lngModuleID=dragObj.element.id;                     if (strAction=="")                         strAction="?MID"+lngIndex+"="+lngModuleID+"&OR"+lngIndex+"="+lngOrder;                     else                         strAction=strAction+"&MID"+lngIndex+"="+lngModuleID+"&OR"+lngIndex+"="+lngOrder;                     lngIndex++;                 }             }         }         if (lngIndex>0) strAction=strAction+"&count="+lngIndex;         strAction="MainPageCenter.jsp"+strAction;         window.location.href=strAction;     }          //根据绑定的Cell来得到DragObject     function getDragObjectByCell(cell){         for (var i=0;i<drag_objects.length;i++){             if (cell==drag_objects[i].cell) return(drag_objects[i]);         }         return(null);     }     //得到指定类型的父对象     function getParent(objChild,strParentType){         var objParent=objChild;                  if (strParentType==null || objChild==null) return(null);         strParentType=strParentType+"";         while (objParent!=null && objParent.tagName.toUpperCase()!=strParentType.toUpperCase()){             //alert(objParent.tagName);             objParent=objParent.parentElement;         }         return(objParent);     }      </SCRIPT> </BODY></HTML>

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JS层移支示例代码

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