请教高手帮助解决一个问题！

[柠檬加可乐]

这段代码是个弹出框，但是弹出后居于页面的上下左右居中，请问如何定位这个弹出框？比如距离顶部100像素。

function ShowIframe(title,url,w,h)
{
var pop=new Popup({ contentType:1,scrollType:'no',isReloadOnClose:false,width:w,height:h});
pop.setContent("contentUrl",url);
pop.setContent("title",title);

pop.build();
pop.show();
}



<a href="#" onClick="javascript:ShowIframe('上传图片','upload.php?pic=pic0&maxz=220&minz=220','300','150')">上传图片</a>

[智商众筹]

popup是什么 看样子是某种js插件？ 如果是，百度一下应该有使用方法文档的

[柠檬加可乐]

///******************* popup.js********************/ ///修正ie5、ie6、ie7、firefox3.0 兼容问题 ///************************************************/ if(!Array.prototype.push){Array.prototype.push=function(){var startLength=this.length;for(var j=0;j<arguments.length;j++){this[startLength+j]=arguments[j];}return this.length;}};function G(){var elements=new Array();for(var i=0;i<arguments.length;i++){var element=arguments[i];if(typeof element=='string')element=document.getElementById(element);if(arguments.length==1)return element;elements.push(element)};return elements};function getValue(str){var nResult=0;switch(str){case "scrollTop":if(typeof(window.pageYOffset)!='undefined'){nResult=window.pageYOffset;}else if(typeof(document.compatMode)!='undefined'&&document.compatMode!='BackCompat'){nResult=document.documentElement.scrollTop;}else if(typeof(document.body)!='undefined'){nResult=document.body.scrollTop;}break;case "clientWidth":if(typeof(document.compatMode)!='undefined'&&document.compatMode!='BackCompat'){nResult=document.documentElement.clientWidth;}else if(typeof(document.body)!='undefined'){nResult=document.body.clientWidth;}break;case "clientHeight":if(typeof(document.compatMode)!='undefined'&&document.compatMode!='BackCompat'){nResult=document.documentElement.clientHeight;}else if(typeof(document.body)!='undefined'){nResult=document.body.clientHeight;}break;case "clientHeight":if(typeof(document.compatMode)!='undefined'&&document.compatMode!='BackCompat'){nResult=document.documentElement.clientHeight;}else if(typeof(document.body)!='undefined'){nResult=document.body.clientHeight;}break;case "scrollWidth":if(typeof(document.compatMode)!='undefined'&&document.compatMode!='BackCompat'){nResult=document.documentElement.scrollWidth;}else if(typeof(document.body)!='undefined'){nResult=document.body.scrollWidth;}break;case "scrollHeight":if(typeof(document.compatMode)!='undefined'&&document.compatMode!='BackCompat'){nResult=document.documentElement.scrollHeight;}else if(typeof(document.body)!='undefined'){nResult=document.body.scrollHeight;}break;default:break;}return nResult;};Function.prototype.bind=function(object){var __method=this;return function(){__method.apply(object,arguments)}};Function.prototype.bindAsEventListener=function(object){var __method=this;return function(event){__method.call(object,event||window.event)}};Object.extend=function(destination,source){for(property in source){destination[property]=source[property]};return destination};if(!window.Event){var Event=new Object();};Object.extend(Event,{observers:false,element:function(event){return event.target||event.srcElement;},isLeftClick:function(event){return(((event.which)&&(event.which==1))||((event.button)&&(event.button==1)));},pointerX:function(event){return event.pageX||(event.clientX+(document.documentElement.scrollLeft||document.body.scrollLeft));},pointerY:function(event){return event.pageY||(event.clientY+(document.documentElement.scrollTop||document.body.scrollTop));},stop:function(event){if(event.preventDefault){event.preventDefault();event.stopPropagation();}else{event.returnValue=false;event.cancelBubble=true;};},findElement:function(event,tagName){var element=Event.element(event);while(element.parentNode&&(!element.tagName||(element.tagName.toUpperCase()!=tagName.toUpperCase())))element=element.parentNode;return element;},_observeAndCache:function(element,name,observer,useCapture){if(!this.observers)this.observers=[];if(element.addEventListener){this.observers.push([element,name,observer,useCapture]);element.addEventListener(name,observer,useCapture);}else if(element.attachEvent){this.observers.push([element,name,observer,useCapture]);element.attachEvent('on'+name,observer);};},unloadCache:function(){if(!Event.observers)return;for(var j=0;j<Event.observers.length;j++){Event.stopObserving.apply(this,Event.observers[j]);Event.observers[j][0]=null;};Event.observers=false;},observe:function(element,name,observer,useCapture){var element=G(element);useCapture=useCapture||false;if(name=='keypress'&&(navigator.appVersion.match(/Konqueror|Safari|KHTML/)||element.attachEvent))name='keydown';this._observeAndCache(element,name,observer,useCapture);},stopObserving:function(element,name,observer,useCapture){var element=G(element);useCapture=useCapture||false;if(name=='keypress'&&(navigator.appVersion.match(/Konqueror|Safari|KHTML/)||element.detachEvent))name='keydown';if(element.removeEventListener){element.removeEventListener(name,observer,useCapture);}else if(element.detachEvent){element.detachEvent('on'+name,observer);};}});Event.observe(window,'unload',Event.unloadCache,false);var Class=function(){var _class=function(){this.initialize.apply(this,arguments);};for(j=0;j<arguments.length;j++){superClass=arguments[j];for(member in superClass.prototype){_class.prototype[member]=superClass.prototype[member];};};_class.child=function(){return new Class(this);};_class.extend=function(f){for(property in f){_class.prototype[property]=f[property];};};return _class;};function space(flag){if(flag=="begin"){var ele=document.getElementById("ft");if(typeof(ele)!="undefined"&&ele!=null)ele.id="ft_popup";ele=document.getElementById("usrbar");if(typeof(ele)!="undefined"&&ele!=null)ele.id="usrbar_popup";}else if(flag=="end"){var ele=document.getElementById("ft_popup");if(typeof(ele)!="undefined"&&ele!=null)ele.id="ft";ele=document.getElementById("usrbar_popup");if(typeof(ele)!="undefined"&&ele!=null)ele.id="usrbar";};};var Popup=new Class();Popup.prototype={iframeIdName:'ifr_popup',initialize:function(config){this.config=Object.extend({contentType:1,isHaveTitle:true,scrollType:'no',isBackgroundCanClick:false,isSupportDraging:true,isShowShadow:true,isReloadOnClose:true,width:400,height:300},config||{});this.info={shadowWidth:4,title:"",contentUrl:"",contentHtml:"",callBack:null,parameter:null,confirmCon:"",alertCon:"",someHiddenTag:"select,object,embed",someHiddenEle:"",overlay:0,coverOpacity:40};this.color={cColor:"#EEEEEE",bColor:"#FFFFFF",tColor:"#478BD1",wColor:"#FFFFFF"};this.dropClass=null;this.someToHidden=[];if(!this.config.isHaveTitle){this.config.isSupportDraging=false;}this.iniBuild();},setContent:function(arrt,val){if(val!=''){switch(arrt){case 'width':this.config.width=val;break;case 'height':this.config.height=val;break;case 'title':this.info.title=val;break;case 'contentUrl':this.info.contentUrl=val;break;case 'contentHtml':this.info.contentHtml=val;break;case 'callBack':this.info.callBack=val;break;case 'parameter':this.info.parameter=val;break;case 'confirmCon':this.info.confirmCon=val;break;case 'alertCon':this.info.alertCon=val;break;case 'someHiddenTag':this.info.someHiddenTag=val;break;case 'someHiddenEle':this.info.someHiddenEle=val;break;case 'overlay':this.info.overlay=val;};};},iniBuild:function(){G('dialogCase')?G('dialogCase').parentNode.removeChild(G('dialogCase')):function(){};var oDiv=document.createElement('span');oDiv.id='dialogCase';document.body.appendChild(oDiv);},build:function(){var baseZIndex=10001+this.info.overlay*10;var showZIndex=baseZIndex+2;this.iframeIdName='ifr_popup'+this.info.overlay;var path="images/close.gif";var close='<input type="image" id="dialogBoxClose" src="'+path+'" border="0" align="absmiddle" title="关闭"/>';var cB='filter: alpha(opacity='+this.info.coverOpacity+');opacity:'+this.info.coverOpacity/100+';';var cover='<div id="dialogBoxBG"

[柠檬加可乐]

接上楼 style="position:absolute;top:0px;left:0px;width:100%;height:100%;z-index:'+baseZIndex+';'+cB+'background-color:'+this.color.cColor+';display:none;"></div>';var mainBox='<div id="dialogBox" style="border:1px solid '+this.color.tColor+';display:none;z-index:'+showZIndex+';position:relative;width:'+this.config.width+'px;"><table width="100%" border="0" cellpadding="0" cellspacing="0" bgcolor="'+this.color.bColor+'">';if(this.config.isHaveTitle){mainBox+='<tr height="24" bgcolor="'+this.color.tColor+'"><td><table style="-moz-user-select:none;height:24px;" width="100%" border="0" cellpadding="0" cellspacing="0" ><tr>'+'<td width="6" height="24"></td><td id="dialogBoxTitle" style="color:'+this.color.wColor+';font-size:14px;font-weight:bold;">'+this.info.title+' </td>'+'<td id="dialogClose" width="20" align="right" valign="middle">'+close+'</td><td width="6"></td></tr></table></td></tr>'}else{mainBox+='<tr height="10"><td align="right">'+close+'</td></tr>'};mainBox+='<tr style="height:'+this.config.height+'px" valign="top"><td id="dialogBody" style="position:relative;"></td></tr></table></div>'+'<div id="dialogBoxShadow" style="display:none;z-index:'+baseZIndex+';"></div>';if(!this.config.isBackgroundCanClick){G('dialogCase').innerHTML=cover+mainBox;this.setBackgroundSize();window.onresize=this.setBackgroundSize;}else{G('dialogCase').innerHTML=mainBox;}Event.observe(G('dialogBoxClose'),"click",this.reset.bindAsEventListener(this),false);if(this.config.isSupportDraging){dropClass=new Dragdrop(this.config.width,this.config.height,this.info.shadowWidth,this.config.isSupportDraging,this.config.contentType);G("dialogBoxTitle").style.cursor="move"};this.lastBuild()},setBackgroundSize:function(){var getValueWidth;var getMaxValueWidth=[getValue("clientWidth"),getValue("scrollWidth")];getValueWidth=eval("Math.max("+getMaxValueWidth.toString()+")");G('dialogBoxBG').style.width=getValueWidth;var getValueHeight;var getMaxValueHeight=[getValue("clientHeight"),getValue("scrollHeight")];getValueHeight=eval("Math.max("+getMaxValueHeight.toString()+")");G('dialogBoxBG').style.height=getValueHeight;},lastBuild:function(){var confirm='<div style="width:100%;height:100%;text-align:center;"><div style="margin:20px 20px 0 20px;font-size:14px;line-height:16px;color:#000000;">'+this.info.confirmCon+'</div><div style="margin:20px;"><input id="dialogOk" type="button" value=" 确定 " class="button"/> <input id="dialogCancel" type="button" value=" 取消 " class="button"/></div></div>';var alert='<div style="width:100%;height:100%;text-align:center;"><div style="margin:20px 20px 0 20px;font-size:14px;line-height:16px;color:#000000;">'+this.info.alertCon+'</div><div style="margin:20px;"><input id="dialogYES" type="button" value=" 确定 " class="button"/></div></div>';var baseZIndex=10001+this.info.overlay*10;var coverIfZIndex=baseZIndex+4;if(this.config.contentType==1){var openIframe="<iframe width='100%' style='height:"+this.config.height+"px' name='"+this.iframeIdName+"' id='"+this.iframeIdName+"' src='"+this.info.contentUrl+"' frameborder='0' scrolling='"+this.config.scrollType+"'></iframe>";var coverIframe="<div id='iframeBG' style='position:absolute;top:0px;left:0px;width:1px;height:1px;z-index:"+coverIfZIndex+";filter: alpha(opacity=00);opacity:0.00;background-color:#ffffff;'><div>";G("dialogBody").innerHTML=openIframe+coverIframe;}else if(this.config.contentType==2){G("dialogBody").innerHTML=this.info.contentHtml;}else if(this.config.contentType==3){G("dialogBody").innerHTML=confirm;Event.observe(G('dialogOk'),"click",this.forCallback.bindAsEventListener(this),false);Event.observe(G('dialogCancel'),"click",this.close.bindAsEventListener(this),false);}else if(this.config.contentType==4){G("dialogBody").innerHTML=alert;Event.observe(G('dialogYES'),"click",this.close.bindAsEventListener(this),false);};},reBuild:function(){G('dialogBody').height=G('dialogBody').clientHeight;this.lastBuild()},show:function(){this.hiddenSome();this.middle();if(this.config.isShowShadow)this.shadow()},forCallback:function(){return this.info.callBack(this.info.parameter)},shadow:function(){var oShadow=G('dialogBoxShadow');var oDialog=G('dialogBox');oShadow['style']['position']="absolute";oShadow['style']['background']="#000";oShadow['style']['display']="";oShadow['style']['opacity']="0.2";oShadow['style']['filter']="alpha(opacity=20)";oShadow['style']['top']=oDialog.offsetTop+this.info.shadowWidth+"px";oShadow['style']['left']=oDialog.offsetLeft+this.info.shadowWidth+"px";oShadow['style']['width']=oDialog.offsetWidth+"px";oShadow['style']['height']=oDialog.offsetHeight+"px";},middle:function(){if(!this.config.isBackgroundCanClick)G('dialogBoxBG').style.display='';var oDialog=G('dialogBox');oDialog['style']['position']="absolute";oDialog['style']['display']='';var sClientWidth=getValue("clientWidth");var sClientHeight=getValue("clientHeight");var sScrollTop=getValue("scrollTop");var sleft=(sClientWidth/2)-(oDialog.offsetWidth/2);var iTop=(sClientHeight/2+sScrollTop)-(oDialog.offsetHeight/2);var sTop=iTop>0?iTop:(sClientHeight/2+sScrollTop)-(oDialog.offsetHeight/2);if(sTop<1)sTop="20";if(sleft<1)sleft="20";oDialog['style']['left']=sleft+"px";oDialog['style']['top']=sTop+"px";},reset:function(){if(this.config.isReloadOnClose){top.location.reload();};this.close();},close:function(){G('dialogBox').style.display='none';if(!this.config.isBackgroundCanClick)G('dialogBoxBG').style.display='none';if(this.config.isShowShadow)G('dialogBoxShadow').style.display='none';G('dialogBody').innerHTML='';this.showSome();},hiddenSome:function(){var tag=this.info.someHiddenTag.split(",");if(tag.length==1&&tag[0]==""){tag.length=0;}for(var j=0;j<tag.length;j++){this.hiddenTag(tag[j]);};var ids=this.info.someHiddenEle.split(",");if(ids.length==1&&ids[0]=="")ids.length=0;for(var j=0;j<ids.length;j++){this.hiddenEle(ids[j]);};space("begin");},hiddenTag:function(tagName){var ele=document.getElementsByTagName(tagName);if(ele!=null){for(var j=0;j<ele.length;j++){if(ele[j].style.display!="none"&&ele[j].style.visibility!='hidden'){this.someToHidden.push(ele[j]);};};};},hiddenEle:function(id){var ele=document.getElementById(id);if(typeof(ele)!="undefined"&&ele!=null){this.someToHidden.push(ele);}},showSome:function(){for(var j=0;j<this.someToHidden.length;j++){this.someToHidden[j].style.visibility='visible';};space("end");}};var Dragdrop=new Class();Dragdrop.prototype={initialize:function(width,height,shadowWidth,showShadow,contentType){this.dragData=null;this.dragDataIn=null;this.backData=null;this.width=width;this.height=height;this.shadowWidth=shadowWidth;this.showShadow=showShadow;this.contentType=contentType;this.IsDraging=false;this.oObj=G('dialogBox');Event.observe(G('dialogBoxTitle'),"mousedown",this.moveStart.bindAsEventListener(this),false);},moveStart:function(event){this.IsDraging=true;if(this.contentType==1){G("iframeBG").style.display="";G("iframeBG").style.width=this.width;G("iframeBG").style.height=this.height;};Event.observe(document,"mousemove",this.mousemove.bindAsEventListener(this),false);Event.observe(document,"mouseup",this.mouseup.bindAsEventListener(this),false);Event.observe(document,"selectstart",this.returnFalse,false);this.dragData={x:Event.pointerX(event),y:Event.pointerY(event)};this.backData={x:parseInt(this.oObj.style.left),y:parseInt(this.oObj.style.top)};},mousemove:function(event){if(!this.IsDraging)return;var iLeft=Event.pointerX(event)-this.dragData["x"]+parseInt(this.oObj.style.left);var iTop=Event.pointerY(event)-this.dragData["y"]+parseInt(this.oObj.style.top);if(this.dragData["y"]<parseInt(this.oObj.style.top))iTop=iTop-12;else if(this.dragData["y"]>

[柠檬加可乐]

接上楼 parseInt(this.oObj.style.top)+25)iTop=iTop+12;this.oObj.style.left=iLeft+"px";this.oObj.style.top=iTop+"px";;if(this.showShadow){G('dialogBoxShadow').style.left=iLeft+this.shadowWidth+"px";G('dialogBoxShadow').style.top=iTop+this.shadowWidth+"px";};this.dragData={x:Event.pointerX(event),y:Event.pointerY(event)};document.body.style.cursor="move";},mouseup:function(event){if(!this.IsDraging)return;if(this.contentType==1)G("iframeBG").style.display="none";document.onmousemove=null;document.onmouseup=null;var mousX=Event.pointerX(event)-(document.documentElement.scrollLeft||document.body.scrollLeft);var mousY=Event.pointerY(event)-(document.documentElement.scrollTop||document.body.scrollTop);var oObjBottom;var oObjRight;if(this.showShadow){oObjBottom=parseInt(this.oObj.style.top)+this.height+this.shadowWidth;oObjRight=parseInt(this.oObj.style.left)+this.width+this.shadowWidth;}else{oObjBottom=parseInt(this.oObj.style.top)+this.height;oObjRight=parseInt(this.oObj.style.left)+this.width;};if(mousX<1||mousY<1||mousX>document.body.clientWidth||mousY>document.body.clientHeight||parseInt(this.oObj.style.left)<0||parseInt(this.oObj.style.top)<0||oObjRight>document.body.clientWidth||oObjBottom>document.body.clientHeight){this.oObj.style.left=this.backData["x"];this.oObj.style.top=this.backData["y"];if(this.showShadow){G('dialogBoxShadow').style.left=this.backData.x+this.shadowWidth;G('dialogBoxShadow').style.top=this.backData.y+this.shadowWidth;};};this.IsDraging=false;document.body.style.cursor="";Event.stopObserving(document,"selectstart",this.returnFalse,false);},returnFalse:function(){return false;}};function openshow(url,title,w,h,stype){g_pop=new Popup({contentType:stype,isReloadOnClose:false,width:w,height:h});g_pop.setContent("title",title);g_pop.setContent("contentUrl",url);g_pop.build();g_pop.show();}function g_close_pop_re(){g_pop.close();location.reload();}function Comment(url,w,h){g_pop=new Popup({contentType:1,isReloadOnClose:false,width:w,height:h});g_pop.setContent("title","登陆");g_pop.setContent("scrollType","no");g_pop.setContent("contentUrl",url);g_pop.build();g_pop.show();}function g_close_pop(){g_pop.close();g_pop=null;}function ShowAlert(title,content,w,h){var pop=new Popup({contentType:4,isReloadOnClose:false,width:w,height:h});pop.setContent("title",title);pop.setContent("alertCon",content);pop.build();pop.show();}function Wclose(){g_pop.close();g_pop=null;}

[柠檬加可乐]

引用 1 楼 wander_wind 的回复:

popup是什么 看样子是某种js插件？ 如果是，百度一下应该有使用方法文档的

搜过了，没有找到解决的办法

[xuzuning]

贴出 Popup 的定义

[李睿_Lee]

直接用Chrome等浏览器的开发者工具来查看Popup生成的HTML，然后直接定义相应的CSS样式就行了。

[李睿_Lee]

引用 7 楼 Novolee 的回复:

直接用Chrome等浏览器的开发者工具来查看Popup生成的HTML，然后直接定义相应的CSS样式就行了。

当然，这是暴力方法，但绝对有效。可能Popup插件本身就有定位的方法，但是懒得去研究查找。

[xm1331305]

那么多Popup插件，没文档不知道换一个插件么？