// JavaScript Document


var dragobj={}
window.onerror=function(){return false}
var domid=12
function on_ini(){
        String.prototype.inc=function(s){return this.indexOf(s)>-1?true:false}
        var agent=navigator.userAgent
        window.isOpr=agent.inc("Opera")
        window.isIE=agent.inc("IE")&&!isOpr
        window.isMoz=agent.inc("Mozilla")&&!isOpr&&!isIE
        if(isMoz){
                Event.prototype.__defineGetter__("x",function(){return this.clientX+2})
                Event.prototype.__defineGetter__("y",function(){return this.clientY+2})
        }
        basic_ini()
}
function basic_ini(){
        window.$=function(obj){return typeof(obj)=="string"?document.getElementById(obj):obj}
        window.oDel=function(obj){if($(obj)!=null){$(obj).parentNode.removeChild($(obj))}}
}
window.oDel=function(obj){if($(obj)!=null){$(obj).parentNode.removeChild($(obj))}}

window.onload=function(){
        on_ini()
        var o=document.getElementsByTagName("h1")
        for(var i=0;i<o.length;i++){
                o[i].onmousedown=addevent;
                //۵͹رհť
                var tt = document.createElement("div");
                tt.style.cssText = "float:left";
                
               
        }
}
//۵ʾ
/*function minusDiv(e)
{
        e=e||event
        var nr = this.parentNode.parentNode.nextSibling;        //ȡݲ
        nr.style.display = nr.style.display==""?"none":"";
}

//Ƴ
function closeDiv(e)
{
        e=e||event
        var mdiv = this.parentNode.parentNode;        //ȡĿ
        oDel(mdiv);
}*/

function addevent(e){
                        if(dragobj.o!=null)
                                return false
                        e=e||event
                        dragobj.o=this.parentNode
                        dragobj.xy=getxy(dragobj.o)
                        dragobj.xx=new Array((e.x-dragobj.xy[1]),(e.y-dragobj.xy[0]))
                        //dragobj.o.className = 'dragging';
                        dragobj.o.style.width=dragobj.xy[2]+"px"
                        dragobj.o.style.height=dragobj.xy[3]+"px"
                        dragobj.o.style.left=(e.x-dragobj.xx[0])+"px"
                        dragobj.o.style.top=(e.y-dragobj.xx[1])+"px"
                        dragobj.o.style.position="absolute"
                        dragobj.o.style.filter='alpha(opacity=60)';                //϶͸Ч

                        var om=document.createElement("div")
                        dragobj.otemp=om
                        om.style.width=dragobj.xy[2]+"px"
                        om.style.height=dragobj.xy[3]+"px"
                        om.style.border = "1px dashed red";        //ikaiserӣʵ߿
                        dragobj.o.parentNode.insertBefore(om,dragobj.o)
                        return false
}
document.onselectstart=function(){return false}
window.onfocus=function(){document.onmouseup()}
window.onblur=function(){document.onmouseup()}
document.onmouseup=function(){
        if(dragobj.o!=null){
                dragobj.o.style.width="auto"
                dragobj.o.style.height="auto"
                dragobj.otemp.parentNode.insertBefore(dragobj.o,dragobj.otemp)
                dragobj.o.style.position=""
                oDel(dragobj.otemp)
                dragobj={}
        }
}
document.onmousemove=function(e){
        e=e||event
        if(dragobj.o!=null){
                dragobj.o.style.left=(e.x-dragobj.xx[0])+"px"
                dragobj.o.style.top=(e.y-dragobj.xx[1])+"px"
                createtmpl(e, dragobj.o)        //ݵǰ϶
        }
}
function getxy(e){
        var a=new Array()
        var t=e.offsetTop;
        var l=e.offsetLeft;
        var w=e.offsetWidth;
        var h=e.offsetHeight;
        while(e=e.offsetParent){
                t+=e.offsetTop;
                l+=e.offsetLeft;
        }
        a[0]=t;a[1]=l;a[2]=w;a[3]=h
  return a;
}
function inner(o,e){
        var a=getxy(o)
        if(e.x>a[1]&&e.x<(a[1]+a[2])&&e.y>a[0]&&e.y<(a[0]+a[3])){
                if(e.y<(a[0]+a[3]/2))
                        return 1;
                else
                        return 2;
        }else
                return 0;
}
//ǰ϶϶ʱɱ仯СԤЧ
function createtmpl(e, elm){
        for(var i=0;i<domid;i++){
                if(document.getElementById("m"+i) == null)        //ѾƳIJ㲻ٱ
                        continue;
                if($("m"+i)==dragobj.o)
                        continue
                var b=inner($("m"+i),e)
                if(b==0)
                        continue
                dragobj.otemp.style.width=$("m"+i).offsetWidth
                elm.style.width = $("m"+i).offsetWidth;
                //1Ϊƣ2Ϊ
                if(b==1){
                        $("m"+i).parentNode.insertBefore(dragobj.otemp,$("m"+i))
                }else{
                        if($("m"+i).nextSibling==null){
                                $("m"+i).parentNode.appendChild(dragobj.otemp)
                        }else{
                                $("m"+i).parentNode.insertBefore(dragobj.otemp,$("m"+i).nextSibling)
                        }
                }
                return
        }
        for(var j=0;j<3;j++){
                if($("dom"+j).innerHTML.inc("div")||$("dom"+j).innerHTML.inc("DIV"))
                        continue
                var op=getxy($("dom"+j))
                if(e.x>(op[1]+10)&&e.x<(op[1]+op[2]-10)){
                        $("dom"+j).appendChild(dragobj.otemp)
                        dragobj.otemp.style.width=(op[2]-10)+"px"
                }
        }
}
function add_div()
{
        var o=document.createElement("div")
        o.className="mo"
        o.id="m"+domid
        $('dom0').appendChild(o)
        o.innerHTML="<h1>dom"+domid+"</h1><div class=nr></div>"
        o.getElementsByTagName("h1")[0].onmousedown=addevent
        domid++
}