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5.6

how to hide the background area on jsp

Asked by manojvashisht in Java Server Pages (JSP), JavaScript, Asynchronous Javascript and XML (AJAX)

Tags: CSS

hi
i am facing a problem in jsp div display,on my jsp on click of icon i show a div which greys out the remaining portion of page the problems i am facing is
1) when div appears the page greys out but the drop down with multi select option are still visible as usual,i.e there is no effect of greying on them.how to solve this
2) i want to disable the control on all the fields except div fields on the page.but the problem is when i disable the same the text box and buttons are not enabled back i have attached the code for same.

i have attached the code please update what additions i need to make to grey out all the fields including drop downs and disable the controls on them.

Get your answer NOW

         
           
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             <html>
  <head>
 <style type="text/css">
#cover{position:absolute;top:0px;left:0px;overflow:hidden;display:none;width:100%;height:100%;background-color:lightgrey;opacity:1.0;MozOpacity:0.9;zIndex:5;filter:alpha(opacity=90);text-align:center}
#warning{margin:auto;position:relative;width:300px;height:200px;background-color:White;color:red;padding:5px;zIndex:100;}
</style> 
 <script>
 
 function disableAllFields(){
	for (j=0 ; j < document.forms.length ; ++j) 
		{
		  for (i=0 ; i < document.forms[j].elements.length ; ++i) 
		  {
		 
			  if((document.forms[j].elements[i].type == "text") ){
				  var nm = document.forms[j].elements[i].name;
					
					document.forms[j].elements[i].readOnly=true;
				  
 
			  }else
			  if ((document.forms[j].elements[i].type == "text")||(document.forms[j].elements[i].type == "radio") || (document.forms[j].elements[i].type == "select-multiple") || (document.forms[j].elements[i].type == "select-one") || (document.forms[j].elements[i].type == "checkbox")|| (document.forms[j].elements[i].type == "textarea"))  
			  document.forms[j].elements[i].zIndex=-100;
			  document.forms[j].elements[i].disabled = true;
			  
			 //  document.forms[j].style.visibility="hidden";
		  }
		}
	return;
}
 
function enableAllFields(){
	for (j=0 ; j < document.forms.length ; ++j) 
		{
		  for (i=0 ; i < document.forms[j].elements.length ; ++i) 
		  {
		 
			  if((document.forms[j].elements[i].type == "text") ){
				  var nm = document.forms[j].elements[i].name;
					
					document.forms[j].elements[i].readOnly= false;
				  
 
			  }else
			  if (	(document.forms[j].elements[i].type == "radio") || 
			  		(document.forms[j].elements[i].type == "select-multiple") || 
			  		(document.forms[j].elements[i].type == "select-one") || 
			  		(document.forms[j].elements[i].type == "checkbox")|| 
			  		(document.forms[j].elements[i].type == "textarea") ||
			  		(document.forms[j].elements[i].type == "text"))  
			  document.forms[j].elements[i].disabled = false;
			  // document.forms[j].style.visibility="visible";
		  }//for i
		}//for j
	return;
}
 var vis=1;
function cover() 
{  
 
	var cover=document.getElementById('cover');
 
	if(vis)
	{
		vis=0;
		cover.style.display='block';      
	} 
	else 
	{   
		vis=1;
		cover.style.display='none'; 
	}
 
}
 
 
if( typeof XMLHttpRequest == "undefined" ) XMLHttpRequest = function() {
        try { return new ActiveXObject("Msxml2.XMLHTTP.6.0") } catch(e) {}
        try { return new ActiveXObject("Msxml2.XMLHTTP.3.0") } catch(e) {}
        try { return new ActiveXObject("Msxml2.XMLHTTP") } catch(e) {}
        try { return new ActiveXObject("Microsoft.XMLHTTP") } catch(e) {}
        throw new Error( "This browser does not support XMLHttpRequest." )
};
 
window.onload = function() {
 // alert("inside onload function");
        // updates every 2.5 seconds
        var msBeforeUpdate = 10000;
        setInterval("checkMe()", msBeforeUpdate);
 
}
 
 function checkMe() {
 // alert("inside check me");
        var request =  new XMLHttpRequest();
        var params = "recordIcon=" + recordIcon.src;
   
    serverUrl = encodeURI(serverUrl + "?" + params);
        
        var serverUrl = "<%=request.getContextPath()%>" + "/NotifyAction.do";
        serverUrl = encodeURI(serverUrl + "?" + params);
        // alert("server url"+serverUrl);
        request.onreadystatechange = function() {
                if(request.readyState == 4 ) {
 
                        // toggles based on returned value
                        //toggleIcon(parseInt(request.responseText) > 0);
                        var res = request.responseText.replace(/(^\s+|\s+$)/g,'');
                        var target ="<valid>true</valid>";
                        
                       //  alert("%%%%%%%%%%%%%%"+request.responseText);
                        if(res== target)
                        {
                                toggleIcon(true);
                                }
                        else 
                        {
                        toggleIcon(false);
                        }
                }
        };
       //  alert("outside servlet call");
        request.open("GET", serverUrl);
        request.send(null);
 
}
 
 function ShowAlerts() {
 // alert("inside check me");
        var request =  new XMLHttpRequest();
        var params = "time";
   
   var cover=document.getElementById('cover');
   
          
        var serverUrl = "<%=request.getContextPath()%>" + "/NotificationListAction.do";
        serverUrl = encodeURI(serverUrl + "?" + params);
        // alert("server url"+serverUrl);
        request.onreadystatechange = function() {
                if(request.readyState == 4 ) {
 					var divData = request.responseText;
 					 alert("%%%%%%%%%%%%%%%%%%%%%"+divData);
                        // toggles based on returned value
                        //toggleIcon(parseInt(request.responseText) > 0);
                        var res = request.responseText.replace(/(^\s+|\s+$)/g,'');
                        var cover=document.getElementById('cover');
                        document.getElementById("alertTable").innerHTML = request.responseText;   
                       
                        
                       //  alert("%%%%%%%%%%%%%%"+request.responseText);
                      
                }
        };
       //  alert("outside servlet call");
        request.open("GET", serverUrl);
        request.send(null);
 
}
 
 
 
 
function showRecords() {
 var alertWin = "<%=request.getContextPath()%>" + "/inc/Notification.jsp";
//  alert("##########"+alertWin);
        if(window.showModalDialog) {
                window.showModalDialog(alertWin, "records",
                "dialogWidth: 600px; dialogHeight: 400px");
        } else {
                window.open(alertWin, "records","height=600,width=400,toolbar=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,modal=yes");
        }
 
} 
 
function toggleIcon(stat) {
 
        var recordIcon = document.getElementById("recordIcon");
 
        if(stat) recordIcon.src = "img/new.png";
        else recordIcon.src = "img/no_new.png";
 
}
 
</script>
 
 
 </head>
 
 
  
<img id="recordIcon" src="img/no_new.png" onClick="javascript:disableAllFields();cover();ShowAlerts();" />
 
<!--    <input type="button" onclick="javascript:disableAllFields();cover();" value="fade now" />-->
 
<div id="cover" style="z-index:5" dir="ltr">
 
	<div id="warning" style="z-index: 5" dir="ltr">
	Mantas Alerts
	
	<span id="alertTable"></span>
	<p align="center">
	<input type="button" onclick="javascript:enableAllFields();cover();" value="clear" /> 
	
	</p>
	</div>
 
</div>
  
  </html>

           
         

how to hide the background area on jsp

Asked by manojvashisht in Java Server Pages (JSP), JavaScript, Asynchronous Javascript and XML (AJAX)

Tags: CSS

About this solution