html waiting interface_html/css_WEB-ITnose

<div id="form_submit"><input type="button" id="message_submit" value="发布消息" onclick="sendOSMessageForAll()"/></div><!--等待div--> <div id="pop" style="z-index:1;background-color:#CCCCCC;filter: alpha(opacity=80);width:100%;height:100%;position:absolute;left:0px;top:0px;display:none"> 	<!-- <div style="text-align:center;height:100%;line-height:250px;overflow:hidden;">发送中,请稍等...</div> --></div><div id="loading" class="loading" style="display:none;">发送中,请稍等...</div>

<script type="text/javascript"><!--打开或关闭等待div-->function show(o1,o2,open){ 	var o1 = document.getElementById(o1); 	var o2 = document.getElementById(o2);	o1.style.width = document.documentElement.scrollWidth; 	o1.style.height = document.documentElement.scrollHeight	if(open){		o1.style.display = "block"; 		o2.style.display = "block"; 	}else{		o1.style.display = "none";  	}}function showLoading(open){ 	var dialog = document.getElementById("loading"); 	if(open){		dialog.style.display = "block"; 	}else{		dialog.style.display = "none"; 	}	return true;}function sendOSMessageForAll() {		show('pop','message_form',true);	showLoading(true);	$.ajax({		url : 'android/createOSMessage.action',        data:{senderId:$("#senderId").attr("value"),content:$("#content").attr("value"),receiver:$("#receiver").attr("value")},        cache : false,         async : true,        type : "POST",        dataType : 'json',        beforeSend:function(){         	show('pop','message_form',true);        	showLoading(true);        },        success : function (result)        {        	if (result != null) 	    	{	    		if(result.status == "0")	    		{	            	show('pop','message_form',false);	    			showLoading(false);	    			alert("发送成功！"); 	    		}	    		else	    		{	            	show('pop','message_form',false);	    			showLoading(false);	    			alert("发送失败！"); 	    		}	    	}        },    	error:function(msg)        {        	show('pop','message_form',false);			showLoading(false);			alert("发送错误！");         },        complete:function(){        } 	});}</script>

The effect is as shown below: