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rated 0 times [  62] [ 5]  / answers: 1 / hits: 68268  / 16 Years ago, mon, february 9, 2009, 12:00:00

I have an application that opens a new window on clicking a link. This spawns a page that holds a Java applet. The problem I am having is that clicking the same link reloads the page, which resets the Java application. Is there any way to trap this? Two solutions that would be acceptable are:




  1. Allow multiple windows to be opened from the click handler

  2. Ignore subsequent requests if the window is already open



Apologies for being a Javascript newbie - it's not really my main thing.



The code attached to the handler is



function launchApplication(l_url, l_windowName)
{
var l_width = screen.availWidth;
var l_height = screen.availHeight;

var l_params = 'status=1' +
',resizable=1' +
',scrollbars=1' +
',width=' + l_width +
',height=' + l_height +
',left=0' +
',top=0';

winRef = window.open(l_url, l_windowName, l_params);
winRef.moveTo(0,0);
winRef.resizeTo(l_width, l_height);
}


EDIT:



Thanks for the replies - I modified the suggestions slightly so that I could have more than one URL opened via the function.



EDIT2:
There is another version of this code at Check for a URL open on another window



var g_urlarray = [];

Array.prototype.has = function(value) {
var i;
for (var i in this) {
if (i === value) {
return true;
}
}
return false;
};


function launchApplication(l_url, l_windowName)
{
var l_width = screen.availWidth;
var l_height = screen.availHeight;
var winRef;

var l_params = 'status=1' +
',resizable=1' +
',scrollbars=1' +
',width=' + l_width +
',height=' + l_height +
',left=0' +
',top=0';
if (g_urlarray.has(l_url)) {
winRef = g_urlarray[l_url];
}
alert(winRef);
if (winRef == null || winRef.closed) {
winRef = window.open(l_url, l_windowName, l_params);
winRef.moveTo(0,0);
winRef.resizeTo(l_width, l_height);
g_urlarray[l_url] = winRef;
}
}

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josefn

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