I am using the following script on an e-commerce site to ensure that not both drop downs cannot be selected at the same time, as well as ensuring one must be selected at all times.The problem with this code is that not all of my product pages have these 2 drop downs so I wanted to try and add in an if statement saying that if id2=9999 and id3 == null then pop up the error. That didnt work because I don't think it can be equal to null if it does not exist on the page. I tried to assign id3 a value of 99999 so that on pages that it doesnt get reassigned after (i.e pages it does not exist on) it will still be equal to 99999 and pop up the error according to the second if clause.Unfortunately that did not work either. Is there any other way I can do via javascript?
im having a little difficulty checking if an XML node has a value, here the code:
var Divs=new Array("artist","bio","img","date","tickets","venue","street","city","country","headliner"); xmlDoc=xmlhttp.responseXML; for ( nodes in Divs )
[code]....
This always throws up the error: document.getElementById(Divs[nodes]) is null ive tried putting the xmlDoc in a variable then checking if its null but no luck, also tried the same method against "undefined" but no luck either.
i am declaring an array in javascript var a = new array();
now before assigning a value to the ith element of this array, i have to check if some value has already been assigned there. But at the time of defining array, it gives undefined values to the array. Is there a way/function, thru which i can find, whether a particular index value was assigned before or not.
Here in my case a[0] and a[5] is duplicate because i am using 1 or 0 for active and deactivate purpose a[4] is deactivate value so we can ignore the 10 in this. so in my case 10 is repeated twice on a[0]and a[5] not a[4], so its duplicate value. can any one help me to solve this.
I have a text box and would like to see if the value of the input matches the values defined in a JavaScript array.For example, the JavaScript array will hold five values:
outputs lines of text, with two <br> between them. What I want is for if it's the last loop for that only to be one <br> but I can't figure out what that "last loop" code should be.
is there a function that get the name of the first input field of the current form ?
in my example below I want create an array of form field name and in the onsubmit assign all element's name to create a simple iteration to test if some elements in my array, that must be required, are null:
something like function verify(array of string)and in onsubmit something like return onsubmit(field1,field2,field3....) Code:
I did find the javascript twice in my code, once in the header and once here, so i removed it from the header. I also changed to src to the full url. But i am still getting this and i dont know why. the file is located in the root directory. found a solution. basically Internet Explorer is crappy and doesnt like the setAttribute property so had to change the onchange handler by directly changing the attrbute for the object like so.object.onchange = function() {}i have no idea what they means, does that mean i need to change swfobject.js or does that mean i have to change my xml request. and if it is the swfobject i have no clue what they mean or what lines
var book1 = bobj1.value; var chapter1 = cobj1.value; var verse1 = vobj1.value; var book2 = bobj2.value; var chapter2 = cobj2.value; var verse2 = vobj2.value; [Code].....
I don't know if this is written properly: if(bcv[a]!= ""){ The reason this is happening is because the error shows: Error: cobj1 is null Source File: [URL]
My code is in the attachment alex.txt.When i press the button for first time it gives me error: 'null' is null or not an object. But when i press it again or refresh the page and press the button it gives me the result that i expect.When i change the var pdbfile1,2,3 values(for example with 2x4n;3gis;1crn) and press the button again there is the error again and i have to refresh the page again.
I keep getting an error stating "getElementById("ballElement") is null, but I have a div with that exact id. I have looked at the JS script before that line, but found no errors there either. Please take a minute to see if you find something.
I have some javascript that uses setInterval(..) to change the src of an image every second. Is there any way of programmatically checking to see whether an image is loaded properly or if a 404 File Not Found error occurs for it?
for a button called "pbRegistration" that checks to see if the value of textbox (tfOtherJobTitle) equals "test" and on completion of the typing "test", it enables the button. Why isn't it working?
...what I'm trying to do is pass through the value of the checkbox ticked through to a function. This function will then, depending on whether the box is ticked or not, untick the access# checkbox.
I can pass the number through to my function, but I'm having difficulty trying to reference the actual checkbox from the script. This is what I've got so far...
function AM_MenuSelection(opt) { var myOpt=document.frmNew.view[opt].value; alert(myOpt); }
As you can see, I can reference the value of the object, but need to be able to access the related access# object.
I'm trying to run some code when a H2 element is clicked on an unordered list below it. The problem is, the code runs whether the h2 has a ul below it or not.
h[x].onclick = function(){ var ul = this.nextSibling;
Clicking "Subtitle" runs the function on "Subtitle 2". I don't want the function to run unless the next element is an ul. How can I verify that the next element is an unordered list and if not, don't run anything?
I'm using jQuery SVG and would like to check if the browser that the person is using will support SVG --- if not, they'll receive a polite message; is there anyway to check this using javascript?
