// Define an array function makeArray(arraySize) { this.length = arraySize return this } // Produce an array with space for two possible image names imageNames = new makeArray(2) function show(num,img_id) { if (num=="0") document.images[img_id].src=imageNames[1]; if (num=="1") document.images[img_id].src=imageNames[0]; } // ----NOTES:-------------------------------------------------- // Usage in HTML pages: // // // // The two lines above must appear in the section // The seven lines that follow display and swap images: // // //

// // // in the onMouseOver statement, there are 4 parameters: // 1. the image in the 'mouseoff' case // 2. the image in the 'mouseon' case // 3. the call to the 'show' function, with 2 parameters: // a. the first number is the 'off' indicator // b. the second number is the number if the image,by number, // in the document, to swap. The first image to load // is called '0', the second is called '1', etc.. // To change the image at the position occupied by image // number '0' (regardless of which image is mouseover'ed // at that moment) specify '0' for the second parameter. // Or call the image by name. // 4. an instruction not to display the image src in the stauts bar // // in the onMouseOut statement, there are 2 parameters: // 1. the call to the 'show' function, with 2 parameters: // a. the first number is the 'on' indicator // b. the second number is the number if the image,by number, // in the document, to swap. Same as in the onMouseOver. // 2. an instruction not to display the image src in the stauts bar // // the img src tag simply gives the image to display at that location. // This might be the same as the first image named in the onMouseOver // statment, if this image will replace itself, or it might be some // other image, if it is meant only as the 'trigger' event to cause // some other image on the page to swap. // // Happy Swapping! // // Code written by Wayne A. Austin, e-mail: ac568@ncf.ca