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document.getElementById().width returning unassigned.why?

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Jul 21.2006

Here is my js function:

function setNewsPosition()
{
position=document.getElementById(“image_1”).width;//returns value
newsWidth= document.getElementById(“news”).width;//returns unassigned
alert(position);
var news= document.getElementById(“news”);
news.style.left= position + newsWidth + ‘px’;
}

Here is the css part that concerns the function:

div#news
{
float:left;
width:25%;
margin-left:-25%;
background:#0099cc;
}

I first thought it is because of the percentage value, but I’ve switched to px and it still returned unassigned. Does anyone have a suggestion why this might be and how it could be fixed.

Greetings,
Valentin

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JavaScript

3 Comments(s) ↴

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@mrhooJul 22.2006 — It looks like you have a div named 'news' and you are looking for an attribute called 'width'. Although images have width attributes, most elements do not. Try the offsetWidth attribute (parseInt it to get a number)
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@ck_net_2004Jul 22.2006 — The div "news" width atribute is in css styling so it should be:

newsWidth = document.getElementById("news").style.width;
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@sanchopansaauthorJul 22.2006 — problem solved. I used the offsetWidth and it worked out perfectly fine.

Thank you for your help.

Greetings,

V
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