window.addEvent('domready',function() {


toggleThis = function(el) {
twistie_id = 'twistie_'+el;
twister_id = 'twister_'+el;
highLt_id = 'highLt_'+el;

currDisplay = $(twistie_id).getStyle('display');
if(currDisplay=='none') {
$(highLt_id).setStyle('color','#0192BF');
$(twistie_id).setStyle('display','block');
$(twister_id).setStyle('background','url(/en/gfx/expand_gray.jpg) no-repeat left center'); 
} else {
$(highLt_id).setStyle('color','');
$(twistie_id).setStyle('display','none');
$(twister_id).setStyle('background','url(/en/gfx/collapse.jpg) no-repeat left center'); 
}
};

expandOrCollapse = function(el) {
lng = $$('.twister').length;
str = ($(el).get('html'));
if(str.indexOf('+') > 0){
$$('.twistie').setStyle('display','block');
$(el).set('html','[<span id="vtog_plus"></span>] <span id="vtog_txt" style="color:#0192BF; font-weight:bold;">Collapse All</span>');

for (i=0; i<lng; i++) {
highLt_id = 'highLt_'+i;
twister_id = 'twister_'+i;
$(highLt_id).setStyle('color','#0192BF');
$(twister_id).setStyle('background','url(/en/gfx/expand_gray.jpg) no-repeat left center'); 
}

} else {
$$('.twistie').setStyle('display','none');
$(el).set('html','[<span id="vtog_plus">+</span>] <span id="vtog_txt" style="color:#0192BF; font-weight:bold;">Expand All</span>');

for (i=0; i<lng; i++) {
highLt_id = 'highLt_'+i;
twister_id = 'twister_'+i;
$(highLt_id).setStyle('color','');
$(twister_id).setStyle('background','url(/en/gfx/collapse.jpg) no-repeat left center'); 
}
}
};
}); // DOM