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  • how can put a javascript variable in img tag

    - by ajithperuva
    I need to put a javascript variable as image source.That is my image tag should be in this format here i am adding my script document.getElementById("pricefilter").innerHTML ='' here variablename carries my image path.How can i put this in double quates.Please help to solve this

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  • What's the purpose of arrays starting with nonzero index?

    - by helios35
    I tried to find answers, but all I got was answers on how to realize arrays starting with nonzero indexes. Some languages, such as pascal, provide this by default, e.g., you can create an array such as var foobar: array[1..10] of string; I've always been wondering: Why would you want to have the array index not to start with 0? I guess it may be more familiar for beginners to have arrays starting with 1 and the last index being the size of the array, but on a long-term basis, programmers should get used to values starting with 0. Another purpose I could think of: In some cases, the index could actually represent something thats contained in the respective array-entry. e.g., you want to get all capital letters in an array, it may be handy to have an index being the ASCII-Code of the respective letter. But its pretty easy just to subtract a constant value. In this example, you could (in C) simply do something like this do get all capital letters and access the letter with ascii-code 67: #define ASCII_SHIFT 65 main() { int capital_letters[26]; int i; for (i=0; i<26; i++){ capital_letters[i] = i+ASCII_SHIFT; } printf("%c\n", capital_letters[67-ASCII_SHIFT]); } Also, I think you should use hash tables if you want to access entries by some sort of key. Someone might retort: Why should the index always start with 0? Well, it's a hell of a lot simpler this way. You'll be faster when you just have to type one index when declaring an array. Also, you can always be sure that the first entry is array[0] and the last one is array[length_of_array-1]. It is also common that other data structures start with 0. e.g., if you read a binary file, you start with the 0th byte, not the first. Now, why do some programming languages have this "feature" and why do some people ask how to achieve this in languages such as C/C++?, is there any situation where an array starting with a nonzero index is way more useful, or even, something simply cannot be done with an array starting at 0?

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  • javascript basics question

    - by refge
    i have this small javascript code which i need some help with. function doFocus(text) { if (text.value == "Enter Name") { text.value = "Student Name -" } } All i need here is when someone clicks on my textbox, the text "Student Name -" should change its color, and should text-align=left. so text.color and text.align or the appropriate sytax.

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  • Removing Numbers from a String using Javascript

    - by Abs
    Hello all, How do I remove numbers from a string using Javascript? I am not very good with regex at all but I think I can use with replace to achieve the above? It would actually be great if there was something JQuery offered already to do this? //Something Like this?? var string = 'All23'; string.replace('REGEX', ''); I appreciate any help on this.

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  • JavaScript function to validate an integer value

    - by Psyche
    Hello, I'm building a shopping cart and I would like to use a JavaScript function to validate user input when entering the quantity value in the quantity text input. I would like to allow the entering of integer values only (no floats, no other characters). I know that I can apply this function using onKeyUp event and also I found isNaN() function, but it returns true even for floats (which is not ok). Can you guys help me out with this one? Thanks.

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  • Javascript Debuuger plugin for eclipse

    - by vineth
    hi , I am new for java and iam doing the project with extjs & JAVA ,i using eclipse version (Eclipse Java EE IDE for Web Developers. Build id: 20100218-1602) . Can any one suggest any javascript debugging plugin for this id or pls provide link.. Thanks in advance

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  • Javascript variables

    - by Uli
    I'm learning Javascript right now. Can anybody tell me why the second code block traces a empty path for -launch(this)- but using the first code block it gives me the right path? "<form action='"+launchwebsite+"/subsite/' method='post' target='_blank' onsubmit='launch(this)'>" and this not: "<a onclick='launch(this)' title='launch' class='iblack' /></a></div>" Best Uli

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  • VB6: assign javascript function to a dom element

    - by Fuxi
    hi, i'm using the mshtml library for parsing out html via MSHTML.HTMLDocument. my question: is there a way to assign a javascript function to a dom element? i've tried something like: div.onmouseover = "function(){alert('mouseover')}" and div.setattribute "onmouseover" , "function(){alert('mouseover')}" without success (no error but no effect either). anyone knows if its possible? thx

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  • Code Highlight with javascript ?

    - by BrunoLM
    Is there any API or a jQuery plugin that allow me to highlight a code on my website? For example <pre code="c#"> var x = new StringBuilder(); var complex = new Complex(); </pre> <script type="text/javascript"> $("pre[code]").codehighlight({ language: "c#" }); </script> Something like that?

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  • HTML - Javascript: I cannot click on the links on top in IE7

    - by Patrick
    hi, I cannot click on the links (tags) on top of the page in IE7. I tried to change z-index of the elements but it doesn't work. Could you tell me what's wrong with it ? http://www.sanstitre.ch/drupal/portfolio?tid[0]=38 The mouse click is handled by jQuery function .click() I'm sure javascript works because" Hide - Alphabetical Order menus" work thanks

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  • how to add javascript to html page

    - by user1888584
    I was given this chunk of code to place in my html page but I know nothing about javascript so I have no idea where to place it and what kind of tag to place it in. Can someone please help me. Thanks Code: $('input[type=radio]').change(function() { $('input[type=radio]').each(function(index) { $(this).closest('tr').removeClass('selected'); }); $(this).closest('tr').addClass('selected'); });

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