i have a text area in a html page which needs to be updated constantly i.e. every 2 seconds this text area needs to show the events occuring during an installation process....as the installation process takes place a log file is updated so I get the info from the log using the tail command(its a linux command). now the problem is how do I refresh my html page such that the text area shows the latest events from the log....is this actually possible using php or html?