JavaObjects.net User Documentation Advanced Multiple Advert Banner Menu Note : Graphics only available on on-line or Word document formats http://www.javaobjects.net (c) Fugazi Consulting Ltd 2003 Overview A flexible ad banner applet, allowing you to display numerous advertisements in one location on your site, freeing up space for real site content ! • Allows an infinite number of adverts to be displayed in one location ! • Automatic scrolling from advert to advert, or display one advert per visit • Configurable for length of pause between adverts • Various special effects including scroll from bottom, top, left and right • Each advert has it's own hyperlink and target window setting • Use GIF files or JPEG files for the adverts, any size ! • Small and quick to load on your site • Demo version available HTML Example Installation and Configuration Copy the above code (in bold) into your HTML (note, not the content !) of your web page, then copy the class file purchased from http://www.javaobjects.net into the same directory on your web server. You may wish to adjust the WIDTH and/or HEIGHT to suit your advert image files. Standard advert banners are 468 by 60 pixels, but you can use any size (we recommend 468 x 60). Create your advert image files in any graphics package (for example Windows Paint) and save as GIF or JPEG format. The adverts must be the same width and height in pixels as you specify above for the applet. You can customise your applet further by changing the following parameters (some of which are optional, i.e. can be omitted) : starton Specify which image to start displaying (for example, "1" for the first image). Specify a value of minus one ("-1") for the applet to display a completely random image, every time the page is viewed. timewait Specify the number of seconds to wait before displaying the next image in sequence. Specify a value of minus one ("-1") to keep the single image displayed for the duration of the page view. So, if starton = 1 and timewait = 10, the first advert will be displayed, and there will be a 10 second pause between images. If starton = -1 and timewait = -1 then a random image will be displayed upon loading the page, which will stay the same until the user clicks on. image_n Specify the name of each image file, including suffix (eg “mypic.GIF”). These files must reside in the same folder on your web server as the html page and the class file. The value of n must start at 1 and be incrementing (1,2,3 etc) url_n The URL to go to if the user clicks on the advert. Each _n value corresponds to the relevant image_n value (e.g. if the user clicks on image_5, they will go to url_5) target_n The target window to open the URL in. Valid values of _top _self _parent or _blank. See URL Targets below for further info. appear_n The special effect for how the next image will appear : "normal" : next image will just appear "top" : next image will scroll from top, down "bottom" : next image will scroll from bottom, up "left" : next image will scroll from left to right "right" : next image will scroll from right to left Default value is “normal”. Note : For every value of n all four parameters must exist. In other words, if there is an image_17, there must also be a url_17, target_17 and appear_17 parameter. If you do not wish to specify a URL or target window, leave the value as blank (i.e. ""). If you do not wish to specify a special effect, use the value of "normal" We recommend, for clarity of reading the HTML, that all the image parameters are grouped together, and all the url, target and appear parameters are also grouped together, however this is not necessary for the applet to work. Support Remember, if you are struggling to set up your applet, or are having problems, we are here to help. Our support team can be contacted on support@javaobjects.net. Please supply as much information about your problem as possible, including the applet name you are having problems with, the HTML code you are using, and if relevant the URL of the site where the applet is being used. URL Targets URL Target Window parameters specify which browser window the destination URL will open up in, when the user clicks on a menu option or graphic (depending on the applet in question). Valid values : _blank – open in a brand new window, leaving this window still open _top – open in the current window, whole page _self – open in the current frame. Only really used when using frames on your page. _parent - open in the parent window. The most commonly used options will be _blank (new window) and _top (same window) which should cater for most scenarios. Color Hexadecimal Values : Color values used on HTML pages and Java applets are represented as six character hexadecimal values, where “000000” is pure black, “FFFFFF” is pure white, and ever other possible color combination can be found in between. The six digits in each colour value can be split into three 2 character Red, Green and Blue values. So, a value of “112233” means a Red value of 11, a Green value of 22 and a Blue value of 33. A note on Hexadecimal representation : As humans with, generally speaking, 10 fingers and 10 toes, we are used to the decimal number system, that is, a ten digit number system starting at 0 and going up to 9. When we reach 9, we “roll over” back to zero again and, of course, add a 1 to the left hand side to give 10. Whereas decimal has ten values per digit, hexadecimal has sixteen values per digit. The standard ten from 0 to 9, but then of course we run out of occidental numbers. So, we start using letters …. A for value 10, B for 11, C for 12, D for 13, E for 14 and F for 15. Once we reach ‘15’ (or F) we “roll over” back to zero again, and add that one to the left, giving 10 (which is the equivalent of value 16 in decimal) Here are a few example of hexadecimal (or “hex”) values and decimal values : Hex 1 = Decimal 1 Hex 9 = Decimal 9 Hex A = Decimal 10 Hex 10 = Decimal 16 Hex 1F = Decimal 31 Hex FF = Decimal 255 So, how do we turn “slightly light blue” into a series of 6 hexadecimal characters ? Well, the easiest way to do this, if you have a Windows operating system, is using the Paint package. Open up Paint, then choose the menu options Colors / Edit Colors. Click on the Define Custom Colors button to bring the color wheel up like this : Choose the desired color you are after using the large color area, and chose the shade using the slider on the right. Here we have chosen that light blue colour we love so much. On the bottom right hand side you can see that there are three values – Red, Green and Blue. But these values are represented in decimal (not hex) which is no use for web work. We know our RGB values, we just need to convert them to hex ! The easiest way to do this is as follows. Let’s take the Red value, 84. Divide 84 by 16 to get 5.25. At this point all we are bothered about is the integer part of this result, i.e. the 5. That’s our first digit. Take the 5 and times that by 16 to give 80. Take 80 from the original number (84) to give a remainder of 4. That’s our second digit. So, the two characters which represent Red in hexadecimal is “54”. Carry on and do the same for Green and Blue. Let’s work through Green first. 175 / 16 = 10.9375. Forget the .9375 and concentrate on 10. We already know that in hex the value 10 is represented by the letter A so ‘A’ is our first digit. 10 * 16 = 160. 175 – 160 equals a remainder of 15. 15 we know is F in hex. So, our Green value is ‘AF’ Finally blue. 203 / 16 = 12.6875. Drop the .6875 to give 12, which is ‘C’. 12 * 16 = 192. 203 – 192 = 11 (or ‘B’). So, our Green value is ‘CB’ Put the three values together, and we arrive at a color value for “slightly light blue” of “54AFCB” ….. result ! If this seems a little long winded or complicated, don’t worry. Try this a few times, and pretty soon this will become second nature. Examples : Black 000000 White FFFFFF Light Gray B0B0B0 Dark Gray 808080 Red FF0000 Green 008000 Blue 0000FF Dark Blue 000080 Bright Green 00FF00 Purple 800080 Light Purple FF00FF Brown 800000 Cyan 00FFFF Yellow FFFF00 License Information Standard Software Disclaimers and Conditions Fugazi Consulting Ltd hereby grants you a non-exclusive license to use its accompanying software product provided that : 1. The Licensee does not redistribute the software, unless authorised to do so by Fugazi Consulting Ltd. 2. 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