function urlencode( str ) {
    // http://kevin.vanzonneveld.net
    // +   original by: Philip Peterson
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // *     example 1: urlencode('Kevin van Zonneveld!');
    // *     returns 1: 'Kevin+van+Zonneveld%21'
                                     
    var ret = str;
    
    ret = ret.toString();
    ret = encodeURIComponent(ret);
    ret = ret.replace(/%20/g, '+');
 
    return ret;
};

function select_flash() {      

var ads_path = '/images/ads/';
var ads_array = [
			 'king_field_ad/kf_468',
			 'king_field_ad/kf_468'
//			 'tc-ads/JobbindAd_1-e_468',
//			 'tc-ads/tc-ad_ar_468'
			 ]; // remember the last comma

var random_n =  Math.floor( Math.random() * ads_array.length + 1 );
var current_ad = ads_array[ random_n-1 ];
current_ad = current_ad.toString();
return ads_path + current_ad;
};

function select_image_ad2() {      

var ads_path = '/images/ads/';
var redirect_url = '/content/ads/ads_redirect.php?url=';
var ads_array = [
			 [ 'hayan-ad.gif' , 'http://www.hayanmaani.com/gallery.php?topicID=1' ], // 2009-8-9
			 //[ 'nashratak-ad.gif', '/lists/?p=subscribe', 1 ],
			 //[ 'share-via-yahoo-ad-6.gif', '' ],
			 [ 'gulf-200-ad-sample.gif', '' ],
			 [ 'ad-here.gif', 'http://www.yawmak.com/contact-us.php', 1 ],			 
			 [ 'twitter-ad.gif', 'http://twitter.com/yawmak' ],
			 [ 'share-photo-on-facebook.gif', 'http://www.yawmak.com/photo-of-the-day/', 1 ],
			 [ 'king_field_ad/kingfield_200x200.jpg', 'http://www.kingfield.com/' ],
//			 [ 'cityplex/cityplex_1.jpg', 'http://www.cre.com.jo/' ],
//			 [ ads_path+'abukhader_200x200.jpg' , 'http://www.abu-khader.com/' ],
//			 [ 'google-ads', 'google-ads' ],
			 [ 'google-ads', 'google-ads' ]
			 ]; // remember the last comma

var random_n =  Math.floor( Math.random() * ads_array.length + 1 );

var current_ad = [];
	current_ad = ads_array[ random_n-1 ];
	
	// google ads case
	if( current_ad[0] == 'google-ads' )
	{
		document.writeln( '<scr' + 'ipt type="text/javascript"><!--');
		document.writeln( 'google_ad_client = "pub-6212833689327971";');
		document.writeln( '/* 200x200, تم إنشاؤها 18/08/08 */');
		document.writeln( 'google_ad_slot = "5755813701";');
		document.writeln( 'google_ad_width = 200;');
		document.writeln( 'google_ad_height = 200;');
		document.writeln( '//-->');
		document.writeln( '</scr' + 'ipt>');
		document.writeln( '<scr' + 'ipt type="text/javascript"');
		document.writeln( 'src="http://pagead2.googlesyndication.com/pagead/show_ads.js">');
		document.writeln( '</scr' + 'ipt>');
	}
	// image ads case
	else
	{
		if( current_ad[1] != '' ) // add link
		{
			// url encode, function defined above
			current_ad[1] = redirect_url + urlencode( current_ad[1] );		
			document.write( '<a id="link_ad1" href="' + current_ad[1] + '" ');
			if( !current_ad[2] ) // open in new window
			{
				document.write( 'target="_blank" ');
			}
			document.write( '>');
		}
		document.write( '<img id="image_ad1" src="' + ads_path + current_ad[0] + '" ' +
						' alt="' + current_ad[0] + '" ' +
						' border="0" />');
		if( current_ad[1] != '' ) // add link
		{
				document.write( '</a>');
		}
	}
};