[SOLVED] how to document.getElementById().style.padding-left ?

[jmatos]

I need to change the style of an element changing its padding-left property (got it in firefox but IE is a different battle..). I can use document.getElementById().style.XX
to everything i need, except with padding-left, as it is separated by a ' - ' and it is not correct to use it as it was supposed to:

document.getElementById('el').style.padding-left = '5px'

will throw 'invalid assignment left-hand side', as expected..

Any help please?

[SOLVED]

Apparently the property turns into paddingLeft (or paddingTop, paddingBottom, paddingRight) so it can be used as expected:

document.getElementById('el').style.paddingLeft = '5px'
document.getElementById('el').style.paddingTop = '5px'
document.getElementById('el').style.paddingRight = '5px'
document.getElementById('el').style.paddingBottom = '5px'

[hsriat]

I need to change the style of an element changing its padding-left property (got it in firefox but IE is a different battle..). I can use document.getElementById().style.XX
to everything i need, except with padding-left, as it is separated by a ' - ' and it is not correct to use it as it was supposed to:

document.getElementById('el').style.padding-left = '5px'

will throw 'invalid assignment left-hand side', as expected..

Any help please?

For that use paddingLeft.

In general, anything of style containing a hyphen ( - ) will work for JavaScript when hyphen is removed and first letter of the second word is made capital.

eg.
background-image -> backgroundImage
border-top -> borderTop


[EDIT]
Glad to know you solved it.

[mrhoo]

Converting between css syntax('border-top-width') and javascript property names ('borderTopWidth') is a common webpage chore.
The values you are working with are always strings, so a String method to do the conversion may be appropriate:

 
String.prototype.dash= function(boo){
    var s= this;
    if(/^[A-Z]+$/.test(s) || /\-/.test(s)) s = s.toLowerCase();
    if(boo=== true ){
        if(/[a-z][A-Z]/.test(s)){
            s= s.replace(/[A-Z]/g, function(w){
                return "-" + w.toLowerCase();
            })
        }
    }
    else if(/\-/.test(s)){
        s= s.replace(/\-[a-z]/g, function(w){
            return w.charAt(1).toUpperCase() + w.substring(2);
        })
    }
    return s;
}
 

// pass the argument 'true' for css (hyphen-ated) , leave it out or pass 'false' to return camelCase.