kpsul/templates/gestioncof/tristate_js.html

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2012-07-11 17:39:20 +02:00
<script type="text/javascript">
var supernifty_tristate = function() {
var
YES = { image: "{{ MEDIA_URL }}/images/yes.png", state: "yes" },
NO = { image: "{{ MEDIA_URL }}/images/no.png", state: "no" },
NONE = { image: "{{ MEDIA_URL }}/images/none.png", state: "none" };
function tristate_elements() {
if ( document.getElementsByClassName != undefined ) {
return document.getElementsByClassName( "tristate" );
}
else {
var
all = document.getElementsByTagName('*'),
alllength = all.length,
result = [], i;
for ( i = 0; i < alllength; i++ ) {
if ( all[i].className == 'tristate' ) {
result.push( all[i] );
}
}
return result;
}
}
return {
init: function() {
var list = tristate_elements(),
i,
html;
for ( i = 0; i < list.length; i++ ) {
var state = NONE;
var value = list[i].getAttribute("value");
if ( value == 'yes' )
state = YES;
else if ( value == 'no' )
state = NO;
html = "<img id=\"" + list[i].id + "_img\" src=\"" + state.image + "\" onclick=\"supernifty_tristate.update('" + list[i].id + "')\"/><input type=\"hidden\" id=\"" + list[i].id + "_frm\" name=\"" + list[i].id + "\" value=\"" + state.state + "\"/>";
list[i].innerHTML = html;
}
},
update: function(id) {
var state = document.getElementById( id + "_frm" ).value, next;
// yes -> no -> none -> yes
if ( state == 'yes' ) {
next = NO;
}
else if ( state == 'no' ) {
next = NONE;
}
else { // assume none
next = YES;
}
document.getElementById( id + "_img" ).src = next.image;
document.getElementById( id + "_frm" ).value = next.state;
}
}
}();
// onload handler
var existing_onload = window.onload;
window.onload = function() {
if ( existing_onload != undefined ) {
existing_onload();
}
supernifty_tristate.init();
}
</script>