Aquí tienes la solución, espero que te ayude, no tengo documentación que pasasrte, pero bueno pegándote un poco lo entenderás :)...
Código:
//global variables that can be used by ALL the function son this page.
var inputs;
var imgFalse = '_style/_img/_desing/check-n.gif';
var imgTrue = '_style/_img/_desing/check-y.gif';
var tickTrue = '_style/_img/_desing/tick-y.gif';
var tickFalse = '_style/_img/_desing/tick-n.gif';
//this function runs when the page is loaded, put all your other onload stuff in here too.
function init() {
replaceChecks();
replaceTicks();
}
function replaceChecks() {
//get all the input fields on the page
inputs = document.getElementsByTagName('input');
//cycle trough the input fields
for(var i=0; i < inputs.length; i++) {
//check if the input is a radio
if(inputs[i].getAttribute('type') == 'radio') {
//create a new image
var img = document.createElement('img');
//check if the radio is checked
if(inputs[i].checked) {
img.src = imgTrue;
} else {
img.src = imgFalse;
}
//set image ID and onclick action
img.id = 'checkImage'+i;
//set image
img.onclick = new Function('checkChange('+i+')');
//place image in front of the radio
inputs[i].parentNode.insertBefore(img, inputs[i]);
//hide the radio
inputs[i].style.display='none';
}
}
}
function replaceTicks() {
//get all the input fields on the page
inputs = document.getElementsByTagName('input');
//cycle trough the input fields
for(var i=0; i < inputs.length; i++) {
//check if the input is a radio
if(inputs[i].getAttribute('type') == 'checkbox') {
//create a new image
var img = document.createElement('img');
//check if the radio is checked
if(inputs[i].checked) {
img.src = tickTrue;
} else {
img.src = tickFalse;
}
//set image ID and onclick action
img.id = 'tickImage'+i;
//set image
img.onclick = new Function('tickChange('+i+')');
//place image in front of the radio
inputs[i].parentNode.insertBefore(img, inputs[i]);
//hide the radio
inputs[i].style.display='none';
}
}
}
//change the radio status and the replacement image
function tickChange(i) {
if(inputs[i].checked) {
inputs[i].checked = '';
document.getElementById('tickImage'+i).src=tickFalse;
} else {
inputs[i].checked = 'checked';
document.getElementById('tickImage'+i).src=tickTrue;
}
}
//change the radio status and the replacement image
function checkChange(i) {
if(inputs[i].checked) {
inputs[i].checked = '';
document.getElementById('checkImage'+i).src=imgFalse;
} else {
inputs[i].checked = 'checked';
document.getElementById('checkImage'+i).src=imgTrue;
}
}
window.onload = init;