vb.org Archive - Hiding/Showing a Div with JavaScript.

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- - Hiding/Showing a Div with JavaScript. (https://vborg.vbsupport.ru/showthread.php?t=160777)

Analogpoint

10-24-2007 02:07 AM

Try:

Code:

 var el = document.getElementById(hcur + 'b');

alert(el);

and see if it gives you undefined, null, or HTML Image object. If it's undefined, and you try to access its src property, Javascript will just die. Also do

Code:

alert(el.src);

and post what it says.

MrApples

10-24-2007 09:27 PM

Yes that was the problem. I assumed JS was smart enough to not kill itself over a element not existing, guess not.

Working code:

Code:

function switchheader(id){

        if ( hcur != id ){

                document.getElementById(hcur).style.display = 'none';        

                document.getElementById(id).style.display = '';        

                if (hcur == 'logo'){

                        document.getElementById('logo2').style.display = 'none';}

                else document.getElementById(hcur + 'b').src = '/styles/7M-v1/new/hb_' + hcur + '.png';

                if (id == 'logo'){

                        document.getElementById('logo2').style.display = '';}

                else document.getElementById(id + 'b').src = '/styles/7M-v1/new/hbalt_' + id + '.png';

                hcur = id;

        }

}

In action - http://www.pollama2.pollama.com

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