Image zoom in and out : Image Zoom « Page Components « JavaScript DHTML

Image zoom in and out
 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title>zoOom 1.0</title>
<style type="text/css">
.link{font-family:verdana,arial,helvetica; font-size:8pt; color:#003399; font-weight:normal}
.link:hover{font-family:verdana,arial,helvetica; font-size:8pt; color:#0099FF; font-weight:normal}
.header{font-family:arial,verdana,helvetica; font-size:20pt; color:#DD0000; font-weight:bold}
</style>

<script language="javascript">

// zoOom 1.0
// (c) 2002 Premshree Pillai
// http://www.qiksearch.com
// premshree@hotmail.com
// Loaction of this script :
// http://www.qiksearch.com/javascripts/zooom10.htm
// Visit http://www.qiksearch.com/javascripts.htm for more FREE scripts


// Configure zoOom

//-----------------------------------------------------------------
var img_path="http://www.java2s.com/style/logo.png"; // The Image Path                     |
var top_pos=130;          // Image position from top              |
var left_pos=162;         // Image position from left             |
var max_width=900;        // Max allowable width                  |
var min_width=10;         // Min allowable width                  |
var time_length=1;        // Zoom delay in milliseconds           |
var step=2;               // Pixels by which image should zoomm   |
//-----------------------------------------------------------------

document.write('<div id="q_div" style="position:absolute; top:' + top_pos + '; left:' + left_pos + '"><img src="' + img_path + '" border="3" bordercolor="#000000" name="z" alt="zoOom"></div>');

img_act_width=z.width;
img_act_height=z.height;
var original_time=time_length;

function zoom_out()
{
 if(z.width==0)
  {
   z.border=0;
  }
 if(z.width!=0)
  {
   if(z.width>min_width)
   {
    z.width-=step;
    z.height=Math.round(z.width*((img_act_height)/(img_act_width)));
    setTimeout("zoom_out()",time_length);
   }
   else
   {
    window.alert('Width less than Minimum Width\nCopyRight Qiksearch zoOom.');
   }
  }  
} 

function zoom_in()
{
 if(z.width==0)
  {
   z.border=0;
  }
 if(z.width!=0)
  {
   if(z.width<max_width)
   {
    z.width+=step;
    z.height=Math.round(z.width*((img_act_height)/(img_act_width)));
    setTimeout("zoom_in()",time_length);
   }
   else
   {
    window.alert('Maximum Width exceeded\nCopyRight Qiksearch zoOom.');
   }
  }  
} 

function resume_zoom()
{
 time_length=original_time;
}

function pause_zoom()
{
 time_length=10000000000;
}

function set_original()
{
 z.width=img_act_width;
 z.height=img_act_height;
}

</script>

</head>
<body bgcolor="#FFFFFF">
<center><span class="header">zoOom 1.0</span></center>
<br>

<!--BEGIN ZOOM LINKS-->
<table cellspacing="10" cellpadding="10" align="center"><tr>
<td style="border:3 solid #000000" align="middle"><a href="#" onmouseover="javascript:resume_zoom();zoom_in();" onmouseout="javascript:pause_zoom();" style="font-family:verdana,arial,helvetica; font-weight:bold; font-size:15pt; color:#003399; text-decoration:none"><font color="#808080">zoOom in</font> +</a></td>
<td style="border:3 solid #000000" align="middle"><a href="#" onmouseover="javascript:resume_zoom();set_original();" style="font-family:verdana,arial,helvetica; font-weight:bold; font-size:15pt; color:#000000; text-decoration:none">original</a></td>
<td style="border:3 solid #000000" align="middle"><a href="#" onmouseover="javascript:resume_zoom();zoom_out();" onmouseout="javascript:pause_zoom();" style="font-family:verdana,arial,helvetica; font-weight:bold; font-size:15pt; color:#003399; text-decoration:none"><font color="#808080">ZOoOM out</font> -</a></td>
</tr></table>
<!--END ZOOM LINKS-->

<table width="400" align="center" cellspacing="0" cellpadding="0"><tr><td>
<font face="verdana,arial,helvetica" size="-1' color="#000000">
Using zoOom, you can zoom in and zoom out any image that is specified in the code.
<br><br>zoOom is very easy to customise.
<br>You can change the image, it's position. You can also set the maximum and minimum allowable widths. You can change the zoom speed.
<br>For customising, make changes in the 'configure' section of the script.
<br><br>
</font>
</td></tr></table>
<table width="400" align="center" cellspacing="0" cellpadding="0"><tr><td>
<hr style="width:100%; height:1; color:#DD0000">
<a href="mailto:premshree@hotmail.com" class="link">&#169 2002 Premshree Pillai. All rights reserved.</a>
</td></tr></table>

</body>
</html>
Related examples in the same category

Image zoom out