"; function search(frm) { win = window.open("","scrollbars"); win.document.write(page); txt = frm.srchval.value.split(" "); fnd = new Array(); total=0; for (i = 0; i < item.length; i++) { fnd[i] = 0; order = new Array(0, 4, 2, 3); for (j = 0; j < order.length; j++) for (k = 0; k < txt.length; k++) if (item[i][order[j]].toLowerCase().indexOf(txt[k]) > -1 && txt[k] != "") fnd[i] += (j+1); } for (i = 0; i < fnd.length; i++) { n = 0; w = -1; for (j = 0;j < fnd.length; j++) if (fnd[j] > n) { n = fnd[j]; w = j; }; if (w > -1) total += show(w, win, n); fnd[w] = 0; } win.document.write("

Total found: "+total+"
"); win.document.close(); } function show(which,wind,num) { link = item[which][1] + item[which][0]; line = ""+item[which][2]+" Score: "+num+"
"; line += item[which][4] + "
"+link+""; wind.document.write(line); return 1; } Wireless Technology

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The Wireless Application Protocol is a hot topic that has been widely hyped in the mobile industry and outside of it. WAP is simply a protocol- a standardised way that a mobile phone talks to a server installed in the mobile phone network.

The Wireless Application Protocol (WAP) is an important development in the wireless industry because of its attempt to develop an open standard for wireless protocols, independent of vendor and airlink.

The Cellular Explosion


Probably the most important factor in the birth of wireless Internet has been the proliferation of digital cell phones in the last few years. The expanding network of digital cellular and personal communication services ( PCS ) has created a solid foundation for wireless Internet services. It is estimated that there are more than 50 million Web-enabled cell phones in use. In 1997, Nokia, Motorola, Ericsson and Phone.com came together to create the WAP because they believed that a universal standard is critical to the successful implementation of wireless Internet. Since then, more than 350 companies have joined them in the WAP Forum .

Making a Web site accessible through a wireless device is quite a challenge. So far, only a small portion of the more than a billion Web sites provide any wireless Internet content. As the use of WAP-enabled devices grows, you can expect that many more Web sites will be interested in creating wireless content.

Wireless Application Protocol

Here's what happens when you access a Web site using a WAP-enabled device:

  • You turn on the device and open the minibrowser.
  • The device sends out a radio signal , searching for service.
  • A connection is made with your service provider.
  • You select a Web site that you wish to view.
  • A request is sent to a gateway server using WAP.
  • The gateway server retrieves the information via HTTP from the Web site.
  • The gateway server encodes the HTTP data as WML.
  • The WML-encoded data is sent to your device.
  • You see the wireless Internet version of the Web page you selected.
To create wireless Internet content, a Web site creates special text-only or low-graphics versions of the site. The data is sent in HTTP form by a Web server to a WAP gateway . This system includes the WAP encoder, script compiler and protocol adapters to convert the HTTP information to WML. The gateway then sends the converted data to the WAP client on your wireless device.
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