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9.3

How can I randomly select a img to start display?

Asked by lapucca in PHP Scripting Language, Hypertext Markup Language (HTML)

I need to randomly select the 1st picture to start displaying from the file path folder at "C:\Inetpub\wwwroot\ctsi\media\images\homeCycleImages2";. So, let say randomly, the 3rd file is selected to display as the 1st img then after that, the 4th and 5th and then back to 1, 2 3.. will be cycle through in displaying. How do I modify the following php code to do this? thanks.

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             <?php
	//full error reporting & display
	ini_set('error_reporting',E_ALL);
	ini_set('display_errors',1);
	//end error reporting
?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<title>Clinical Translational Science Institute (CTSI) - USC, CHLA, COH</title>
<style type="text/css">
.slideshow { height: 250px; width: 450px; margin: auto }
.slideshow2 { height: 250px; width: 450px; margin: auto }
</style>        
 
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252" />
<link rel="stylesheet" href="http://www.labctsi.org/newcss/basic.css" type="text/css" />
<link rel="stylesheet" href="http://www.labctsi.org/newcss/site.css" type="text/css" />
<link rel="stylesheet" href="http://www.labctsi.org/newcss/layout.css" type="text/css" />
 
<!-- Css styles for main menu (Superfish + jQuery) -->
 
<link rel="stylesheet" type="text/css" href="http://www.labctsi.org/newcss/superfish-dropdown.css" media="screen" />
 
<!-- Javascript and initialization of main menu (Superfish) -->
<script type="text/javascript" src="http://www.labctsi.org/js/jquery.js"></script> 
<script type="text/javascript" src="http://www.labctsi.org/js/hoverIntent.js"></script> 
<script type="text/javascript" src="http://www.labctsi.org/js/superfish.js"></script>
<script type="text/javascript" src="http://www.labctsi.org/js/supersubs.js"></script>
<script type="text/javascript" src="http://www.labctsi.org/js/jquery.cycle.all.js"></script>
 
<!-- Initialise main menu (Superfish) -->
<script type="text/javascript"> 
	$(document).ready(function()
	{
				$('.slideshow').cycle({
						fx: 'fade',
						speed: 1000, 
                                                timeout:  2000 
				});
				$('.slideshow2').cycle({
						fx: 'fade',
						speed: 5000
				});
		
		$("ul.sf-menu").supersubs({ 
		minWidth:    8,   // minimum width of sub-menus in em units 
		maxWidth:    25,   // maximum width of sub-menus in em units 
		extraWidth:  0     // extra width can ensure lines don't sometimes turn over 
						   // due to slight rounding differences and font-family 
	}).superfish();
				$('#core_Search').attr('action', 'http://www.labctsi.org/index.php');                   
		}); 
 
</script>
</head>
<body class="homePage">
        <table border="0" width="100%" cellspacing="0" cellpadding="0">
    <tr valign="top">
            <td align="left" bgcolor="#000000"><a href="http://www.usc.edu"><img src="http://www.usc.edu/usc/img/01/usc-name-lightgray-black.gif" alt="University of Southern California" width="255" height="25" border="0"/></a></td>
            <td width="50" rowspan="2" align="left" bgcolor="#990100"><a href="http://www.usc.edu"><img src="http://www.usc.edu/usc/img/01/mono-gold-cardinal-med.gif" alt="" width="65" height="50" border="0" /></a></td>
    </tr>
        <tr valign="top">
 
            <td align="left" bgcolor="#990100"><a href="http://www.labctsi.org/"><img src="http://www.labctsi.org/media/images/title.gif" width="475" height="25" border="0" /></a></td>
    </tr>
</table>
 
        <div id="wrapper">
            <div id="header">
                <a href="http://www.labctsi.org"><img src="http://www.labctsi.org/media/images/logolabctsi.gif"/></a>
                <ul id="utilityLinks">
                <li><a href="http://www.labctsi.org/Membership.aspx/Apply"><img src="http://www.labctsi.org/media/images/ctsimember.png" /></a></li>
                </ul>
            </div>
        	<div id="mainNavigation">
        
        <ul class="sf-menu">
                <li>
                        <a href="http://www.labctsi.org/">Home</a>
                </li>
                <li>
                        <a href="#">Centers</a>
 
                        <ul>
                <li><a href="http://www.labctsi.org/index.php/about_cct/">Community</a></li>
                                <li><a href="http://www.labctsi.org/index.php/about_cetcd/">Education</a></li>
                <li><a href="http://www.labctsi.org/index.php/about_chs/">Human Studies</a></li>
                                <li><a href="http://www.labctsi.org/index.php/cbis/">Informatics</a></li>
                                <li><a href="http://www.labctsi.org/index.php/cst">Scientific Translation</a></li>
 
                        </ul>
                </li>
                <li>
                        <a href="#">Programs</a>
                        <ul>
                <li><a href="http://www.labctsi.org/index.php/about_ethics/">Ethics</a></li>
                                <li><a href="http://www.labctsi.org/index.php/about_rdg/">RDG</a></li>
 
                                <li><a href="http://www.labctsi.org/index.php/about_regulatory/">Regulatory</a></li>
                        </ul>
                </li>
                <li>
                        <a href="#a">Resources</a>
                        <ul>
                                <li><a href="#">Community</a></li>
 
                                <li><a href="#">Education</a></li>
                                <li><a href="http://www.labctsi.org/index.php/resources/core_facilities">Research Cores</a></li>
                        </ul>
                </li>
                <li>
                        <a href="#a">Applications</a>
                        <ul>
 
                                <li><a href="http://www.labctsi.org/index.php/feasibility_application_2009">Feasibility Grant Program 2009</a></li>
                        </ul>
                </li>
        </ul>           
</div>
<br/>
<div id = prototype>    
    <CENTER>
            <table cellspacing="10"><tr><td>    
                <div id="curtain"  class="slideshow">
                        <?php
                        $dir = "C:\Inetpub\wwwroot\ctsi\media\images\homeCycleImages1";
 
                        // Open a known directory, and proceed to read its contents
                        if (is_dir($dir)) {
                                if ($dh = opendir($dir)) {
                                        while (($file = readdir($dh)) !== false) {                      
                                                if ($file != "." && $file != "..") {
                                                      
                                                      echo "<img src='http://www.labctsi.org/media/images/homeCycleImages1/".$file."'  width='450' height='250' />";
                                                }
                                        }
                                        closedir($dh);
                                } else {
									echo "<div>Unable to open dir, check permissions.</div>";
								}
                        } else {
							echo "<div>Dir does not exist.</div>";
						}
                        ?>
                </div>
     </td><td>
                <div id="fade"  class="slideshow2">
                        <?php
                        $dir = "C:\Inetpub\wwwroot\ctsi\media\images\homeCycleImages2";
 
                        // Open a known directory, and proceed to read its contents
                        if (is_dir($dir)) {
                                if ($dh = opendir($dir)) {
                                        while (($file = readdir($dh)) !== false) {                      
                                                if ($file != "." && $file != "..") {
                                                      
                                                      echo "<img src='http://www.labctsi.org/media/images/homeCycleImages2/".$file."'  width='450' height='250' />";
                                                }
                                        }
                                        closedir($dh);
                                } else {
									echo "<div>Unable to open dir, check permissions.</div>";
								}
                        } else {
							echo "<div>Dir does not exist.</div>";
						}
                        ?>
                </div>
        </td></tr>      
        </table>
   </CENTER>
</div>
        
 
 
                <br class="clear" />
                <div id="mainContent">
                        <div id="secondaryNavigationColumn">
                            <ul>
                    <li><a href="http://www.labctsi.org/index.php/feasibility_grant_program_2009">Pilot Grant Program 2009 - Announcement</a></li>
                                <li><a href="http://www.labctsi.org/index.php/feasibility_application_2009">Pilot Grant Program 2009 - Applications</a></li>
 
                                </ul>
                        </div>
                        <div id="informationColumn">
                                <p>The NIH has created a national consortium that will transform how clinical and translational research is conducted, ultimately enabling researchers to provide new treatments more efficiently and quickly to patients. Led by NCRR, this new consortium, funded through Clinical and Translational Science Awards (CTSAs), begins with <a href="http://www.ncrr.nih.gov/clinical_research_resources/clinical_and_translational_science_awards/consortium_directory/index.asp">several Academic Health Centers</a> (AHCs) located throughout the nation. Additional AHCs are receiving planning grants to help them prepare applications to join the consortium.</p>
                                <p>When fully implemented in 2012, about 60 institutions will be linked together to energize the discipline of clinical and translational science. The new program draws on NIH's earlier initiatives to re-engineer the clinical research enterprise, one of the key objectives of the NIH Roadmap for medical research.</p>
                                <p>The <a href="http://www.nih.gov/news/pr/oct2006/ncrr-03.htm">NIH News Release</a> and the CTSA Questions and Answers offer additional information on the consortium. CTSA Grant Awardees have agreed to post part of their <a href="https://www.ctnbestpractices.org/networks/nih-ctsa-awardees/">applications</a> for public viewing.</p>
 
                        </div>
                        <div id="newsAndEventsColumn">
                                <h1 id="newsHeading">Recent News</h1>
                                <ul>
                                  <li><span class="date">June 15, 2009</span><br/><a href="http://www.labctsi.org/site/news/webinar_course_on_researcher_commercialization/">Webinar Course on Researcher Commercialization</a></li>
                                  <li><span class="date">February 04, 2009</span><br/><a href="http://www.labctsi.org/site/news/new_la_basin_ctsi_initiative/">New Los Angeles Basin CTSI Initiative</a></li>
                                  <li><span class="date">February 03, 2009</span><br/><a href="http://www.labctsi.org/site/news/american_medical_informatics_association_amia/">AMIA Informatics Webinars </a></li>
                                </ul>
                                <h1 id="eventsHeading">Upcoming Events</h1> 
                                <ul>
                                </ul>
                        </div>
                </div>
                <div id="footer">
                	<a href="#">Terms of Use</a> | <a href="https://usc.centraldesktop.com/login" target="_blank">Central Desktop</a> | <a href="http://www.labctsi.org/system" target="_blank">Content Management</a> | <a href="http://mail.labctsi.org" target="_blank">Email</a> | <a href="http://calendar.labctsi.org" target="_blank">Calendar</a> | <a href="#" target="_blank">Videos</a>
                </div>
        </div>
</body>
</html>
           
         

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How can I randomly select a img to start display?

Asked by lapucca in PHP Scripting Language, Hypertext Markup Language (HTML)

About this solution