- Dynamic HTML FAQ Knowledge Base

irt.org | Knowledge Base | Dynamic HTML

• FAQ 102 What is span?
  
  
• FAQ 145 How do I alter the HTML source of a layer in Internet Explorer?
  
  
• FAQ 148 How do I change selected parts of the text on the page?
  
  
• FAQ 149 How do I change selected parts of the HTML on the page?
  
  
• FAQ 150 How do I change text within table cells?
  
  
• FAQ 179 How can I move a layer using an onMouseOver event handler?
  
  
• FAQ 193 Is there a way to do an onMouseOver on text, i.e. not a link and not an image?
  
  
• FAQ 202 How can I make a link text go bold on mouse over, but only in browsers that support it?
  
  
• FAQ 225 Is it possible to select a portion of a mapimage and have some text appear in another area of same page?
  
  
• FAQ 251 How do you access the images in a layer in Netscape?
  
  
• FAQ 253 How can I control a Layer in Netscape 4 so that it is always positioned in the same location on the screen regardless of where in the document the user is currently located?
  
  
• FAQ 254 How can I control a layer in Explorer 4 so that it is always positioned in the same location on the screen regardless of where in the document the user is currently located?
  
  
• FAQ 255 How can I combine the previous scripts so that a layer in either Netscape 4 or Explorer 4 is always positioned in the same location on the screen regardless of where in the document the user is currently located?
  
  
• FAQ 274 How do I make an image move across the page?
  
  
• FAQ 313 Using an Image Map and mouse overs is there a way to highlight that clicking the image will actually do something, other than using status messages?
  
  
• FAQ 367 How can I open get a new window to pop up when the mouse rolls over a certain plain text word?
  
  
• FAQ 376 How do I make an image bounce off the edges of the browser?
  
  
• FAQ 397 How can I do 'dynamic outlines' (like windows explorer) that show the sub-sections when you click on the sections and hide them again when you click the second time?
  
  
• FAQ 405 How can I load a page within a page when a button is pushed?
  
  
• FAQ 410 How do you hide and reveal the article synopsis' on irt.org?
  
  
• FAQ 430 How can I highlight text links in table cells?
  
  
• FAQ 457 Is it possible to make select object form hidden?
  
  
• FAQ 464 How you destroy a layer created using new Layer()?
  
  
• FAQ 510 Can I parse the HTML on a page, for example, if I know there's a table on a page, can I extract out that table and display it alone, say with a different background, title, headings etc?
  
  
• FAQ 515 How can I force a layer to stay at the bottom of the browser window (Netscape Navigator 4), whenever this window is maximized, or resized?
  
  
• FAQ 522 Is there a way to display the value of a variable (such as a text string) on the web page without using document.write (which clears the page) or one of the aesthetically unpleasing "box" solutions--writing into text boxes, alert boxes, etc?
  
  
• FAQ 572 How do I alter the source of a layer?
  
  
• FAQ 574 How can I make table rows disappear?
  
  
• FAQ 578 Is there anyway to get Netscape to let you dynamically resize your images?
  
  
• FAQ 581 How can I highlight normal text using onMouseover?
  
  
• FAQ 585 How do I dynamicaly change the number of rows and columns in a textarea on form submit?
  
  
• FAQ 617 How can I write into a nested Layer in Netscape?
  
  
• FAQ 628 How can I get an answer to a question to appear below after the question is clicked on?
  
  
• FAQ 666 Is there a way of 'dynamically' changing the content of a normal text paragraph in a page on an event?
  
  
• FAQ 681 If I have an image object within <DIV> tags, how can I access the image without errors?
  
  
• FAQ 696 How can I show a description directly under an image map, using onMouseOver?
  
  
• FAQ 699 Is there any way to detect if a Netscape Navigator 4 or higher user has disabled Style Sheets in users preferences setting?
  
  
• FAQ 700 How can I alter the contents of a layer in Netscape Navigator 4 using *.js source files to hold the text to be used in the layers?
  
  
• FAQ 703 How can I change the contents of a table cell when the mouse moves over an image in a form?
  
  
• FAQ 715 How can I load an image over another, when passing the page an x and y co-ordinate?
  
  
• FAQ 720 Is it possible to have a small, variable length text description appear when a user passes the pointer over an AREA within an imagemap?
  
  
• FAQ 721 How can I simulate the layers effect with Internet Explorer 4 ?
  
  
• FAQ 727 How can I make a cross browser text rollover menu in DHTML?
  
  
• FAQ 751 How can I change parts of the text that appears in the page after the page has loaded?
  
  
• FAQ 753 How can I change an attribute of a tag without using the document.write() method, for example, can I control the bgColor of a table cell?
  
  
• FAQ 779 Does navigator have a comparable innerHTML property?
  
  
• FAQ 789 How can I fade text, like some pages fade the background, so that it initially matches the background color and gradually fades into visiblity?
  
  
• FAQ 792 How can I load a file into a layer?
  
  
• FAQ 795 When using links that are not underlined, how can I make the underlining appear when using onMouseover?
  
  
• FAQ 803 How do I loop through all the layers in a document in Internet Explorer?
  
  
• FAQ 804 How can I highlight text links when using onMouseover and open new windows when the text is clicked?
  
  
• FAQ 818 How can I combine image highlighting with the dynamic tooltips script?
  
  
• FAQ 849 Can I create a version of the mouse hover code that works on both Netscape Navigator 4 and Microsoft Internet Explorer 4?
  
  
• FAQ 859 How can I bounce a ball around inside a layer using Dynamic HTML?
  
  
• FAQ 865 Is it possible to dynamically create HTML on the fly in one frame via an event handler in another frame e.g onMouseOver?
  
  
• FAQ 875 When using a floating layer, how do I keep the thing invisible when the user is scrolling the page and visible only when the user is not scrolling?
  
  
• FAQ 881 Is there a way to tell the browser to resize a DHTML element based on the size of the browser window?
  
  
• FAQ 882 How can I show a layer when a mouse moves over a link, but ensure that the layer is positioned next to the mouse pointer.?
  
  
• FAQ 884 How can I make a layer appear in the exact x and y position within the browser window?
  
  
• FAQ 908 Is it possible to set up some kind of sliding bar relative to the number/size of pictures or total downloading time, so that my visitors would know how long to wait?
  
  
• FAQ 915 What is the difference between <span> and <div>?
  
  
• FAQ 918 How can I display the value of a form field in the document body when a form button is pressed?
  
  
• FAQ 935 How can I use an image map to alter text in a layer?
  
  
• FAQ 944 In Netscape CSS can be switched off, is it possible to detect this?
  
  
• FAQ 951 How can I highlight the background color of table cells using onMouseOver?
  
  
• FAQ 953 How can I swap images using onMouseOver when the image is contained with a Netscape layer?
  
  
• FAQ 982 In Netscape Navigator 4, how I do I swap two images in different layers?
  
  
• FAQ 983 How can I hide and show a layer when form buttons are pressed?
  
  
• FAQ 984 How can I hide and show a layer when a single form toggle button is pressed?
  
  
• FAQ 998 How can I select a entry from a select form field and display a formatted date on the document not using a text field?
  
  
• FAQ 1000 Once an image has loaded how can I display its width and height beneath the image?
  
  
• FAQ 1001 How do I write text slowly across the screen using a character string stored in a varable?
  
  
• FAQ 1002 Can I highlight the percentage download of several large images on the screen whilst they are downloading from the server?
  
  
• FAQ 1032 How do you "clip" a layer?
  
  
• FAQ 1035 How can I find out the width of text rendered by the document?
  
  
• FAQ 1063 How can I find out the width and height of a layer?
  
  
• FAQ 1133 How can I swap table rows between two table by pressing form field buttons?
  
  
• FAQ 1135 If I initially set the height of a DIV to zero, then I add some text to this DIV the DIV resizes itself, how can I get the new height of the DIV?
  
  
• FAQ 1136 How can I simulate a text toolbar across the top of the document?
  
  
• FAQ 1144 How can I drag and drop objects in both Netscape Navigator and Internet Explorer?
  
  
• FAQ 1157 How can I open and position layers but fail gracefully in older browsers?
  
  
• FAQ 1159 How can I open a popup windows to fit the dynamically written contents?
  
  
• FAQ 1173 How can I show a description directly under an image map, using onMouseOver, even when the image is in a table and the image is not on the left hand side of the screen?
  
  
• FAQ 1177 How can I reveal a message a letter at a time?
  
  
• FAQ 1183 How can I find out the width in pixels of a character?
  
  
• FAQ 1185 Why can't I access an image within a layer nested within a layer?
  
  
• FAQ 1187 When creating newLayer(), how can you give it a NAME or ID?
  
  
• FAQ 1190 How do I use JavaScript to center a background watermark image in Netscape Navigator 4?
  
  
• FAQ 1191 How can I change the visibility of a layer (in Netscape) using the onMouseOver event handler?
  
  
• FAQ 1200 How can I make a watermark that floats and remains in the same location whilst I scroll through a document in either Netscape Navigator 4+ or Internet Explorer 4+?
  
  
• FAQ 1201 How can I make a watermark that floats and remains in the bottom right hand corner of the window whilst I scroll through a document in either Netscape Navigator 4+ or Internet Explorer 4+?
  
  
• FAQ 1210 How can I create a collapsable menu in JavaScript?
  
  
• FAQ 1215 How can I draw a box over another image?
  
  
• FAQ 1217 How can I show a description of where a link will go using DHTML?
  
  
• FAQ 1219 How can I place a watermark background image in the centre of the page?
  
  
• FAQ 1226 Is it possible to make a slider in JavaScript that automatically saves the value of the slider in a variable after you moved the slider?
  
  
• FAQ 1258 How can I combine tool tips with an image map?
  
  
• FAQ 1259 How can I combine tool tips with an image map, but have the tool tips hover at the same place as the mouse pointer?
  
  
• FAQ 1260 Is there a way to know the coordinates on the page where the mouse was clicked?
  
  
• FAQ 1261 How can I make a layer visible by clicking on a textlink on the same page?
  
  
• FAQ 1267 Can I have a layer with a semi-transparent background?
  
  
• FAQ 1268 Is there any way to make a document read another document and put it in a layer?
  
  
• FAQ 1269 How can I scroll text across the screen without using the status bar and without using form fields?
  
  
• FAQ 1275 How can I hide a layer by clicking an image link within the layer?
  
  
• FAQ 1276 How can I read the text written in one frame by clicking a button on the other frame?
  
  
• FAQ 1283 How can I make a form button, that disappears once clicked?
  
  
• FAQ 1284 How can I detect if the user has a Flash plug-in?
  
  
• FAQ 1289 How can I position layers relative to an imagemap such that I can hide and reveal layers over parts of the imagemap on mouse over?
  
  
• FAQ 1293 How can I dynamically change the src of a layer from within a layer?
  
  
• FAQ 1295 How can I scroll a link from right to left on the screen?
  
  
• FAQ 1297 How can I have a slide show, not of images, but of HTML pages?
  
  
• FAQ 1298 How can I resize an existing layer?
  
  
• FAQ 1313 How can I move a layer all the time across the screen from right to left and back?
  
  
• FAQ 1314 How do you position a layer in the center of a document?
  
  
• FAQ 1315 How can I dynamically create a text box in a form on click of the image button?
  
  
• FAQ 1343 How can I show/hide a layer in a separate frame?
  
  
• FAQ 1347 How can I load another page into an absolutely positioned layer in Internet Explorer?
  
  
• FAQ 1362 How can I update the contents of a relatively position layer in Netscape Navigator?
  
  
• FAQ 1363 How can I change the background color of text in the normal flow of the page?
  
  
• FAQ 1370 What are innerText, outerText, innerHTML and outerHTML?
  
  
• FAQ 1375 How can I highlight the background color of table cells using onMouseOver, when the table is nested within a layer?
  
  
• FAQ 1376 Using just the id of a layer how can I check that it is visible or hidden?
  
  
• FAQ 1378 What's the difference between the Microsoft Internet Explorer style properties 'posTop', 'top' and 'pixelTop'?
  
  
• FAQ 1379 How can I create a horizontal slider control?
  
  
• FAQ 1380 How can I create a vertical slider control?
  
  
• FAQ 1381 How can I position a layer relative to an image?
  
  
• FAQ 1384 How can I add an onClick event to an area of text, or, how can I mask out an area and provide my own onClick event?
  
  
• FAQ 1385 How can I create a single form that submits fields that are positioned in different Netscape Navigator layers?
  
  
• FAQ 1387 How can I get the CSS width and height values of a layer in Netscape Navigator 4?
  
  
• FAQ 1388 How can I replace a lower resolution image and some explantaion text with a higher resolution image without the text by clicking on the image?
  
  
• FAQ 1391 Which DHTML properties in Netscape Navigator 4 map to which DHTML properties in Internet Explorer ?
  
  
• FAQ 1400 How do I measure the height of my document?
  
  
• FAQ 1408 How do I reveal a layer when a link in another layer is clicked?
  
  
• FAQ 1409 Is it possible to have the position of a layer move with the coordinates of the mouse (without having to click and drag the layer), eg. a horizontal line layer and a verticle line layer, both following the position of the mouse pointer?
  
  
• FAQ 1413 Is there a way to address stylesheet classes in Netscape Navigator?
  
  
• FAQ 1414 How can I show the time in Perth in a layer?
  
  
• FAQ 1418 Instead of a toolbar with menus that drop down, is it possible to have a toolbar with menus that fall up?
  
  
• FAQ 1420 How do I make code compatiable with Mozilla/Netscape Navigator 5, so that I can show and hide layers in all supporting browsers?
  
  
• FAQ 1423 How can I move an image to where I click on the browser window?
  
  
• FAQ 1426 How can I add scrollbars to a Netscape Layer and allow the user to scroll through the contents?
  
  
• FAQ 1432 How can you copy a layered image to the clipboard, when I use the save image as option (right mouse click) I only get the upper layer (or style sheet)?
  
  
• FAQ 1515 Is there a way to access a document's html comments that is <!-- example -->?
  
  
• FAQ 1533 How can I make a button that moves a table (scrolling effect) up or down?
  
  
• FAQ 1732 How can I display an absolutely positioned layer of content over form fields so that the form fields do not show through the layer?
  
  
• FAQ 1780 How can I highlight normal text using onMouseover?
  
  
• FAQ 1781 How to make a collapsible treeview applet with JavaScript?
  
  
• FAQ 1792 How do you center a layer in IE?
  
  
• FAQ 1793 How do I make an explanation appear when my mouse pointer hovers over a word?
  
  
• FAQ 1801 How can I resize an image