Sample code for js confirmation delete dialog box effect_javascript skills

*{ margin:0; padding:0;}
#div1{ width:300px; height:100px; border-radius:10px; background:#f60; box-shadow:5px 5px 10px #ccc; position:absolute; left:50%; margin-left:-150px; z-index:2; opacity:0; filter:alpha(opacity:0); display:none;}
#div1 h3{ height:20px; background:#60f;}
#overlay{ width:100%; height:100%; background:#ccc; position:absolute; left:0; top:0; opacity:0; z-index:1; display:none;}
#closeConfirm{ width:80px; height:20px; line-height:20px; background:#ccc; border-radius:5px; display:block; text-decoration:none; color:#000; text-align:center; position:absolute; bottom:10px; right:10px;}
#trueConfirm{width:80px; height:20px; line-height:20px; background:#ccc; border-radius:5px; display:block; text-decoration:none; color:#000; text-align:center; position:absolute; bottom:10px; right:100px;}
#confirmCon{ text-align:center; color:#ccc; height:40px; line-height:40px;}

function ConfirmPop(delObj,confirmMain,overlay,binkTitle,closeConfirm,trueConfirm){
    this.oDelObj=document.getElementById(delObj);
    this.oDiv=document.getElementById(confirmMain);
    this.oOverlay=document.getElementById(overlay);
    this.oTitle=document.getElementById(binkTitle);
    this.oCloseConfirm=document.getElementById(closeConfirm);
    this.oTrueConfirm=document.getElementById(trueConfirm);
    this.oConStart=0;
    this.oConItarget=0;
    this.init();
}
ConfirmPop.prototype={
    init:function(){
        this.oConStart=parseInt((document.documentElement.clientHeight-this.oDiv.offsetHeight)/2-100);
        this.oConItarget=parseInt((document.documentElement.clientHeight-this.oDiv.offsetHeight)/2-70);
        this.oDiv.style.top=this.oConStart 'px';
        document.title=this.oConStart ', ' this.oConItarget;
        var _this=this;
        this.oDelObj.onclick=function(){
            _this.confirmShow();
        }
        this.oOverlay.onclick=function(){
            _this.titleBink();
        }
        this.oCloseConfirm.onclick=this.oTrueConfirm.onclick=function(){
            _this.confirmHide();
        }

    },
    confirmShow:function(){
        this.oOverlay.style.display='block';
        this.oDiv.style.display='block';
        striveMove(this.oOverlay,{ opacity:30});
        striveMove(this.oDiv,{top:this.oConItarget, opacity:100})
    },
    titleBink:function(){
        var _this=this;
        var iLightTimer=null;
        var i=0;
        iLightTimer=setInterval(function(){
            if(i%2){
                _this.oTitle.style.background='#60f';
            }else{
                _this.oTitle.style.background='#ccc';   
            }
            i ;
            if(i>5){
                clearInterval(iLightTimer);
            }
        },50)   
    },
    confirmHide:function(){
        striveMove(this.oOverlay,{opacity:0});
        this.oOverlay.style.display='none';
        striveMove(this.oDiv,{top:this.oConStart, opacity:0});   
    }

}
function  striveMove(obj,json,fn){clearInterval(obj.iTimer);obj.iTimer=setInterval(function(){var  bStop=true;for(var  attr  in  json){var  iCur=0;if(attr=='opacity'){iCur=Math.round(parseFloat(getStyle(obj,attr))*100);}else{iCur=parseInt(getStyle(obj,attr));}var  iSpeed=(json[attr]-iCur)/8;iSpeed=iSpeed>0?Math.ceil(iSpeed):Math.floor(iSpeed);if(attr=='opacity'){obj.style.filter='alpha(opacity:' (iCur iSpeed) ')';obj.style.opacity=(iCur iSpeed)/100;}else{obj.style[attr]=iCur iSpeed 'px';}if(iCur!==json[attr]){bStop=false;}}if(bStop){clearInterval(obj.iTimer);if(fn){fn();}}},30)}function  getStyle(obj,attr){return  obj.currentStyle?obj.currentStyle[attr]:getComputedStyle(obj,false)[attr];}