Month: November 2009

xgraph utility in Network Simulator 2

Xgraph is an X-Windows application that includes: interactive plotting and graphing animation and deritives portability and bug fixes So to plot the characteristics of NS2 parameters like throughput, end to end delay, packets information, etc can be plotted using xgraphThe successful installation of NS2 will install xgraph also along with it. To run xgraph from …

xgraph utility in Network Simulator 2Read More »

Simple Examples in Javascript

document.write is a simple function used to display the content to the browser and it also embeds HTML tags inside it and renders as HTML tags. <html> <script type=text/javascript> document.write("Hello How are you"); document.write("<h1> This is header 1 </h1>"); document.write("<p> This is a new paragraph </p>"); </script> </html>

Installing NS2 under Ubuntu 9.10

Download NS2 from the following Website, I tried version ns-allinone-2.34.tar.gz. Put the file under /home/pradeep/ (my user login is pradeep, you may try with your username) go the folder in the shell prompt by issuing the following command cd /home/pradeep/ Since installation of NS2 simulator needs some autoconfigurationfiles which will need to be installed. To …

Installing NS2 under Ubuntu 9.10Read More »

Validating a Textbox

<html> <head> <script type="text/javascript"> document.write("Validating a Text Box<BR>"); function validate_required(field,alerttxt) { with (field)   {   if (value==null || value=="")     {     alert(alerttxt);     return false;     }   else     {     return true;     }  }} function validate_form(thisform) { with (thisform)   {   if (validate_required(email,"Email must be filled out!")==false)   { …

Validating a TextboxRead More »

Detect Browser and its Parameters

<html> <body> <script type="text/javascript"> document.write("<p>Browser: "); document.write(navigator.appName + "</p>"); document.write("<p>Browserversion: "); document.write(navigator.appVersion + "</p>"); document.write("<p>Code: "); document.write(navigator.appCodeName + "</p>"); document.write("<p>Platform: "); document.write(navigator.platform + "</p>"); document.write("<p>Cookies enabled: "); document.write(navigator.cookieEnabled + "</p>"); document.write("<p>Browser’s user agent header: "); document.write(navigator.userAgent + "</p>"); </script> </body> </html>

Browser Detect in Java Script

<html> <head> <script type="text/javascript"> function detectBrowser() { var browser=navigator.appName; var b_version=navigator.appVersion; var version=parseFloat(b_version); if ((browser=="Netscape"||browser=="Microsoft Internet Explorer")   && (version>=4))   {   alert("You are having a Recent Browser!");   } else   {   alert("It’s time to upgrade your browser!");   } } </script> </head> <body onload="detectBrowser()"> </body> </html>

Alert, Confirm and Prompt in Javascript

  <html> <script type=text/javascript> function alertFn() { alert("Welcome to my Website"); } function confirmFn() { confirm("Please Select yes or no"); } function promptFn() { prompt("Enter your Name", "Pradeepkumar"); } </script> <body onload="alertFn()"> <input type=button Value="Click" onclick="confirmFn()"> <input type=button value="Click Me" onclick="promptFn()"> </body> </html>