document.all[]是文档中所有标签组成的一个数组变量,包括了文档对象中所有元素;
event.button的值:0没按键 1按左键 2按右键 3按左和右键 4按中间键 5按左和中间键 6按右和中间键 7按所有的键
下面是实现代码,模仿window,并且让它可以盖住select
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>测试可动p</title> <script language='javascript' type='text/javascript'> var offset_x; var offset_y; function Milan_StartMove(oEvent,p_id) { var whichButton; if(document.all&&oEvent.button==1) whichButton=true; else { if(oEvent.button==0)whichButton=true;} if(whichButton) { var op=p_id; offset_x=parseInt(oEvent.clientX-op.offsetLeft); offset_y=parseInt(oEvent.clientY-op.offsetTop); document.documentElement.onmousemove=function(mEvent) { var eEvent; if(document.all) eEvent=event; else{eEvent=mEvent;} var op=p_id; var x=eEvent.clientX-offset_x; var y=eEvent.clientY-offset_y; op.style.left=(x)+"px"; op.style.top=(y)+"px"; var d_op=document.getElementById("disable_"+op.id); d_op.style.left=(x)+"px"; d_op.style.top=(y)+"px"; } } } function Milan_StopMove(oEvent){document.documentElement.onmousemove=null; } function p_Close(o) {var op=o; op.style.display="none";var d_op=document.getElementById("disable_"+o.id);d_op.style.display="none";} </script> </head> <body> <p id="op" style="position:absolute;width:100px;height:60px;border:1px solid silver;left:100px;top:100px;z-index:9999;"> <p id="move" onmousedown="Milan_StartMove(event,this.parentNode)" onmouseup="Milan_StopMove(event)" style="cursor:move;width:100%;height:15px;background-color:#0066cc; font-size:10px;"> <p onclick="p_Close(this.parentNode.parentNode)" style="float:right; width:10px; height:100%; cursor:hand; background-color:#cc3333; color:White;font-size:15px;">X</p> </p> <span>测试一下</span> </p> <p id="disable_op" style="position:absolute;left:100px;top:100px;width:100px; height:60px; z-index:9998;FILTER:alpha(opacity=50);";> <iframe src="about:blank" name="hiddenIframe" width="100%" frameborder="0" height="60px" title="遮盖层"></iframe></p> <select name="ListHead1$DropDownList3" id="ListHead1_DropDownList3"> <option selected="selected" value=""></option> <option value="2">3333</option> <option value="6">1111</option> <option value="B">222</option> </select> </body> </html>
现在这个可拖动的p是不是好很多了?不用担心select了。之前放出来的只能在IE下正常工作,主要是用了parentElement,现在把它换成parentNode,调整了CSS样式,这样在FF下也能正常运行了。
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