getelementsbytagname

newer to javascript. On my page (asp.net application, vb as serverside language), I am using document.getElementsByTagName("img") to get all img tagged html items. I am noticing one in particular does not show up in this list (I was able to put them into an array and access the items individually - code below). This item is is contained inside an iframe (the iframe doesn't use SRC or anything else, just defined then the html inside it is right there in the source, doesnt load from another page - this is automatically generated by a crystal reports viewer generated at runtime, which is why I am

I'm using a javascript snippet in order for visitors to my site to increase the font size on all paragraphs using the following javascript: function increaseFontSize() { var paragraphs = document.getElementsByTagName('p'); for(i=0;i<paragraphs.length;i++) { if(paragraphs[i].style.fontSize) { var s = parseInt(paragraphs[i].style.fontSize.replace("px","")); } else { var s = 14; } if(s != max) { s += 1; } paragraphs[i].style.fontSize = s+"px" } } How can I also include "li" to this code so that "p" and "li" are the selected elements that are affected? I would also like to avoid adding a class or

原文:http://www.w3pop.com/learn/view/doc/dom_nodes_nodelist/ DOM 节点列表 -------------------------------------------------------------------------------- 作者:w3pop.com 翻译/整理:w3pop.com 发布:2007-04-29 修改:2007-08-30 浏览:3258 :: :: DOM 节点 DOM 解析 DOM NodeList and NamedNodeMap DOM NodeList [节点列表]对象和 NamedNodeMap [指定节点映射]对象 This chapter explains what a NodeList is, and what a NamedNodeMap is. It also explains the differences between them. 通过本章的学习，你将学习什么是NodeList [ 节点列表 ]，什么是NamedNodeMap[ 指定节点映射 ]，以及它们之间存在着哪些不同。 -------------------------------------------------------------------------------- DOM NodeList DOM

原文:http://www.w3pop.com/learn/view/doc/dom_nodes_nodelist/ DOM 节点列表 -------------------------------------------------------------------------------- 作者:w3pop.com 翻译/整理:w3pop.com 发布:2007-04-29 修改:2007-08-30 浏览:3258 :: :: DOM 节点 DOM 解析 DOM NodeList and NamedNodeMap DOM NodeList [节点列表]对象和 NamedNodeMap [指定节点映射]对象 This chapter explains what a NodeList is, and what a NamedNodeMap is. It also explains the differences between them. 通过本章的学习，你将学习什么是NodeList [ 节点列表 ]，什么是NamedNodeMap[ 指定节点映射 ]，以及它们之间存在着哪些不同。 -------------------------------------------------------------------------------- DOM NodeList DOM

I used the following jquery to insert a metatag into a html document. <script type="text/javascript"> if(screen.width>=320 && screen.width<=767){ $('head').append('<meta id="viewport" name="viewport" content="width=320; initial-scale=1.0; maximum-scale=1.0; user-scalable=0;">');} </script> If possible, I'd like to insert the metatag without using jquery. Anyone have any ideas how I can do that? I believe I will probably need to use document.getElementByTagName but I'm not sure how. Just in case you are wondering, I am inserting the metatag into my html to to optomize the site for viewing with

I've got the script below var els = document.getElementsByTagName("a"); for(var i = 0, l = els.length; i < l; i++) { var el = els[i]; el.innerHTML = el.innerHTML.replace(/link1/gi, 'dead link'); } However this searches through the page and takes about 20 seconds to do it as there are LOTS of links. However I only need to target the a 's that have a specific href , for eg. "http://domain.com/" So ideally I'd like to be able to do this in a similar fashion to jQuery, but without using a framework. So something like var els = document.getElementsByTagName("a[href='http://domain.com']"); How would