jQuery实现DIV拖动

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
 <head>
  <title> New Document </title>
  <script src="jquery-1.10.2.js"></script>
  <script>
    $(document).ready(function(){
        var birthInfo = new Array();
        var birthInfoLabel = new Array();

        birthInfo[0] = "a1;a2;a3;a4;a5;a6;a7;a8;a9;a10";
        birthInfoLabel[0] = "张一;张二;张三;张四;张五;张六;张七;张八;张九;张十";
        birthInfo[1] = "b1;b2;b3;b4;b5;b6;b7;b8;b9;b10";
        birthInfoLabel[1] = "李一;李二;李三;李四;李五;李六;李七;李八;李九;李十";
        birthInfo[2] = "c1;c2;c3;c4;c5;c6;c7;c8;c9;c10";
        birthInfoLabel[2] = "王一;王二;王三;王四;王五;王六;王七;王八;王九;王十";

        $("#button1").click(function(){
            $.each(birthInfo,function(k,p){
                var birthInfoss = p.split(";");
                alert(birthInfoss);
            });
        });
        /***********测试可拖动的DIV************/
        $("#button2").click(function(){
            for(var i=1;i<6;i++){
                createDiv("aaa"+i,"测试数据",80+100*i,80);
            }

        });
});
/***********创建可拖动的DIV************/
function createDiv(id, label, offset_left, offset_top)
{
    $("body").append($("<div></div>").attr("id", id).text(label));

    $("#" + id).css({"position":"absolute", "cursor":"move", "border": "1px dotted #000000", "font-size":"12px"});
    $("#" + id).offset({left:offset_left, top:offset_top});

    $("#" + id).mousedown(function(event){
        divId = $(event.target).attr("id");
        $("div").css("background", "#FFFFFF");
        $("#" + divId).css("background", "#eeeeee");

        var offset=$("#" + divId).offset();
        x1=event.clientX-offset.left;
        y1=event.clientY-offset.top; 

        $(document).mousemove(function(event){
            if(!isNaN(event.clientX) && !isNaN(event.clientY)) {
               $("#" + divId).css("left",(event.clientX-x1)+"px");
               $("#" + divId).css("top",(event.clientY-y1)+"px");
            }
        });
        $("#" + divId).mouseup(function(event){
           $(document).unbind("mousemove");
        });
    });

    $(document).keydown(function(event){

        var keyCodeValue = event.keyCode;
        var offsetValue = $("#" + divId).offset();

        if(keyCodeValue == 46) {
            if(divId != "") {
                $("#" + divId).remove();
            }
        }

        switch(keyCodeValue)
        {
            case 37 : $("#" + divId).offset({left:(offsetValue.left - 1)});
            break;
            case 38 : $("#" + divId).offset({top:(offsetValue.top - 1)});
            break;
            case 39 : $("#" + divId).offset({left:(offsetValue.left + 1)});
            break;
            case 40 : $("#" + divId).offset({top:(offsetValue.top + 1)});
            break;
        }
    });
}

  </script>
 </head>
 <body>
    <button id="button1">button1</button>
    <button id="button2">button2</button>
 </body>
</html>