Develop Reference

how to add css styling inside javascript?

Actually i am using iframe element in html page but it is inside tag which means javascript. so I want to add css to that iframe element, how can I do that? Can someone help please

Styles from the parent will not be applied to the document within the iframe. The best solution is to add the stylesheet to the document in the iframe. Either via javascript or creating a template page to load in via src.
Something like:
var head = doc.head
var link = doc.createElement('link')
link.type = 'text/css'
link.rel = 'stylesheet'
link.href = ...src...
head.appendChild(link)
This is an example: link

yourElement.style.attribute = value
for example
var button = document.getElementById("btn")
button.style.color = "red"
button.style.marginTop = 0;
when writing css in javascript you must use camel case css for example type marginTop not type the margin-top

How can I change css for every DOM object in the page in SAPUI5

I have a things inspector and this things inspector has two titles. I wan to be able to change the css on this titles and make their font size a bit smaller( default fontSize is 16px and I want to drop it to 12px). I tried to get these titles class and use this method to change their size:
var element = document
.getElementsByClassName("sapUiUx3TVTitleSecond")[1];
element.style.fontSize = '12px';
var element = document
.getElementsByClassName("sapUiUx3TVTitleFirst")[1];
element.style.fontSize = '12px';
it does work and I can see the change but as soon as the page finishes loading ( page loading takes couple of second because it needs to read a json object) title sizes go back to its default.
I dont even know this is a right way to access DOM elements and change their CSS.
Please point me to the right direction of how to change DOM object css in SAPUI5 in general

You could create a new CSS file which you include in your index.html.
Just add the needed selectors with the modified attributes in this custom CSS:
.sapUiUx3TVTitleSecond, .sapUiUx3TVTitleFirst {
font-size : 12px;
}
Edit: if you need to change it programmatically, you could use the addStyleClass("yourStyle") method which is available to every UI element

Execute the script after dom gets completely loaded. Try like this
$("document").ready(function()
{
var element = document
.getElementsByClassName("sapUiUx3TVTitleSecond")[1];
element.style.fontSize = '12px';
var element = document
.getElementsByClassName("sapUiUx3TVTitleFirst")[1];
element.style.fontSize = '12px';
})

$("document").ready(function()
{
$(".sapUiUx3TVTitleSecond").css("font-size","12px");
})

jquery lightbox select source/link based on content type

I'm trying to create a lightbox that uses the rel attribute and the href/src (depending on the type of content). I need an if/else statement to assign an href to a variable (contentURL) if the content's a video but assign the src instead if the content's an image.
html for video content:
html for image content:
<img src="images/photo.jpg">
Here's what I have so far:
$("a[rel='lightbox'").click(function(e){
e.preventDefault();
var shadow = $('#lightbox-shadow'),
lightbox = $('#lightbox');
shadow.fadeIn(300);
lightbox.delay(450).fadeIn(300);
var contentURL; //assign href or src to this variable
//IF/ELSE STATEMENT HERE
shadow.click(function(){
shadow.fadeOut(300);
lightbox.empty();
});
});
Also, if you could help me understand the ajax method for loading the content, that would be awesome! :)

Given the HTML above, one way to tell whether to grab the src or href attribute would be to test if the clicked link contains an image tag. I have a sample working with this code:
$("a[rel='lightbox'").click(function(e){
e.preventDefault();
var shadow = $('#lightbox-shadow'),
lightbox = $('#lightbox'),
$target = $(e.target).closest('a'),
$img = $target.find('img'),
contentURL;
shadow.fadeIn(300);
lightbox.delay(450).fadeIn(300);
contentURL = ($img.length > 0) ? $img.attr('src') : $target.attr('href');
console.log(contentURL);
});
You can see that working here if you open the console:
http://jsfiddle.net/9XELr/
However, this sample will only work if your youtube links never contain images. If they might, you will need to set up some other conditional logic, maybe a class or data attribute on the link itself that is different depending on the type of content.

How do I encapsulate a tag within another tag using jQuery or JavaScript?

I have a container div that contains some img tags. When I click on a img tag, it returns me the index position of that img tag within the div tag. I would like to wrap this img tag within another div tag either using jQuery or JavaScript --- is there any way to do this?
I am Working With a Wordpress plugin (the Slide show gallery) which displays the thumbnails of large images on clicking the thumnail i want to show a arrow that shows which current slide is beiging displaying.. after exploring the js files that comes along with plugin found that they are using pure javascript.
Currently i am using this code.
for(i;i<this.l;i++){
this.a[i]={};
var h=m[i], a=this.a[i];
a.t= tag('h3',h)[0].innerHTML;
a.d= tag('p',h)[0].innerHTML;
a.l= tag('a',h)[0]? tag('a',h)[0].href:'';
a.p= tag('span',h)[0].innerHTML;
if(this.thumbs){
var g = tag('img',h)[0];
this.p.appendChild(g);
w+=parseInt(g.offsetWidth);
if(i!=this.l-1){
g.style.marginRight=this.spacing+'px';
w+=this.spacing
}
this.p.style.width=w+'px';
g.style.opacity=this.thumbOpacity/100;
g.style.filter='alpha(opacity='+this.thumbOpacity+')';
g.onmouseover=new Function('TINY.alpha.set(this,100,5)');
g.onmouseout=new Function('TINY.alpha.set(this,'+this.thumbOpacity+',5)');
g.onclick=new Function(this.n+'.pr('+i+',1)');
//g.onclick = new Function(this.n)
}
}

you can use .wrap()
$("img").click(function(){
$(this).wrap("<div />");
});

How to update HTML element with jQuery and Galleria?

I am using Galleria for a slideshow. I want to place a small, 'Larger' link beside the stage.
I have this code for the 'Larger' button:
this.fullres = this.create('div', 'fullres');
this.get('fullres').innerHTML = 'Larger';
this.appendChild('fullres', this.fullres);
I have this code that assigns every <img>'s rel= tag to the full sized image URL from the page's custom field:
<img ... rel="<?=$attachments[$i]['fullres']?>" />
With JQuery, I am hoping to pull the active image's rel= tag value and append the .fullres href tag. This is the code I have so far, but it doesn't work:
var title = $(.images).attr('rel'); // pulls the fullres url from the rel tag
$('.galleria-fullres').attr('href', ); //append the galleria fullres href with the rel info

Galleria doesn't really work like that. But what you can do, is to create a button to enter fullscreen and have a larger image in fullscreen.
Something like this:
$('#galleria').galleria({
// other galleria options here
dataConfig: function( img ) {
// get the fullscreen image
return {
big: $( img ).attr('rel')
};
}
});
var galleria = Galleria.get(0);
$('#fullscreen-button').click(function() {
galleria.enterFullscreen();
});

I have to say I can't see how this would work as it is...
Do you know you have a typo at: $(.images)? Should be $('.images').
And have you left out the second parameter at $('.galleria-fullres').attr('href', ); on purpose? Shouldn't this be $('.galleria-fullres').attr('href', title); ?
How can the jquery work by referencing the elements by classes? You are getting an array of elements, not just one. I guess this is only an excerpt of your code? Am I missing something?
Could you perhaps post the html of a sample of these elements as seen in the browser? It should be a pretty easy thing, but I really can't see the whole picture with those lines only.