function fn_changeTABS(obj){

var element = document.getElementById('tabs').getElementsByTagName('li');

for(i=0; element.length>i;i++){

    if(element[i]){
    element[i].className = 'none';
    }

    if(document.getElementById('tab_content_'+element[i].id)){
    document.getElementById('tab_content_'+element[i].id).style.display="none";
    }

} 



obj.className = 'active';

        if(document.getElementById('tab_content_'+obj.id)){
        document.getElementById('tab_content_'+obj.id).style.display="";
        }
    
}
window.onload = function(){


var element = document.getElementById('content-hp').getElementsByTagName('li');

for(i=0; element.length>i;i++){

if(element[i].className != 'active' && document.getElementById('tab_content_'+element[i].id)){document.getElementById('tab_content_'+element[i].id).style.display="none";}

} 

}