function showAdvSearch(){
    
    if(document.getElementById('advanced_search').style.display == "block"){
        hide('advanced_search');
    }
    else{
        show('advanced_search', 'block');
    }
}

function show(id, how){
    
    document.getElementById(id).className='';
    
    if (navigator.appName == 'Microsoft Internet Explorer') {
        element=document.getElementById(id).style;
        element.display = 'block';
    }
    else {
        element=document.getElementById(id).style;
        element.display = how;
    }
}

function hide(id){
    
    element=document.getElementById(id).style;
    element.display = 'none';
}

function switchChangebox(id){
    
    var obj1 = document.getElementById('changebox_home1');
    var obj2 = document.getElementById('changebox_home2');
    var obj3 = document.getElementById('changebox_home3');
    
    if(!id){
        
        if(obj1)  document.getElementById('changebox_home1').className = 'left';
        if(obj2)  document.getElementById('changebox_home2').className = 'hidden';
        if(obj3)  document.getElementById('changebox_home3').className = 'hidden';
        
        if(obj1)  document.getElementById('changebox_home1_button').className = 'ad_item sel';
        if(obj2)  document.getElementById('changebox_home2_button').className = 'ad_item';
        if(obj3)  document.getElementById('changebox_home3_button').className = 'ad_item';
        
        if(obj1)  document.getElementById('changebox_home1_arrow').innerHTML = '<span class="leftarrow"></span>';
        if(obj2)  document.getElementById('changebox_home2_arrow').innerHTML = '';
        if(obj3)  document.getElementById('changebox_home3_arrow').innerHTML = '';
        
    }
    
    if(id == "changebox_home1"){
    
        if(obj1)  document.getElementById('changebox_home1').className = 'left';
        if(obj2)  document.getElementById('changebox_home2').className = 'hidden';
        if(obj3)  document.getElementById('changebox_home3').className = 'hidden';
        
        if(obj1)  document.getElementById('changebox_home1_button').className = 'ad_item sel';
        if(obj2)  document.getElementById('changebox_home2_button').className = 'ad_item';
        if(obj3)  document.getElementById('changebox_home3_button').className = 'ad_item';
        
        if(obj1)  document.getElementById('changebox_home1_arrow').innerHTML = '<span class="leftarrow"></span>';
        if(obj2)  document.getElementById('changebox_home2_arrow').innerHTML = '';
        if(obj3)  document.getElementById('changebox_home3_arrow').innerHTML = '';
        
        //autoswitchChangebox('stop');
        
    }
    if(id == "changebox_home2"){
        
        if(obj1)  document.getElementById('changebox_home1').className = 'hidden';
        if(obj2)  document.getElementById('changebox_home2').className = 'left';
        if(obj3)  document.getElementById('changebox_home3').className = 'hidden';
        
        if(obj1)  document.getElementById('changebox_home1_button').className = 'ad_item';
        if(obj2)  document.getElementById('changebox_home2_button').className = 'ad_item sel';
        if(obj3)  document.getElementById('changebox_home3_button').className = 'ad_item';
        
        if(obj1)  document.getElementById('changebox_home1_arrow').innerHTML = '';
        if(obj2)  document.getElementById('changebox_home2_arrow').innerHTML = '<span class="leftarrow"></span>';
        if(obj3)  document.getElementById('changebox_home3_arrow').innerHTML = '';
        
        
    }
    if(id == "changebox_home3"){
        /*document.getElementById('changebox_home1').style.display = 'none';
        document.getElementById('changebox_home2').style.display = 'none';
        document.getElementById('changebox_home3').style.display = 'block';*/
        
        if(obj1)  document.getElementById('changebox_home1').className = 'hidden';
        if(obj2)  document.getElementById('changebox_home2').className = 'hidden';
        if(obj3)  document.getElementById('changebox_home3').className = 'left';
        
        if(obj1)  document.getElementById('changebox_home1_button').className = 'ad_item';
        if(obj2)  document.getElementById('changebox_home2_button').className = 'ad_item';
        if(obj3)  document.getElementById('changebox_home3_button').className = 'ad_item sel';
        
        if(obj1)  document.getElementById('changebox_home1_arrow').innerHTML = '';
        if(obj2)  document.getElementById('changebox_home2_arrow').innerHTML = '';
        if(obj3)  document.getElementById('changebox_home3_arrow').innerHTML = '<span class="leftarrow"></span>';
        
        //autoswitchChangebox('stop');
    }
    
    
    
}
function autoswitchChangebox(arg, stop){
        
        var b2;
        
        var obj1 = document.getElementById('changebox_home1');
        var obj2 = document.getElementById('changebox_home2');
        var obj3 = document.getElementById('changebox_home3');
        
        if(obj1)    var max = 1;
        if(obj2)    var max = 2;
        if(obj3)    var max = 3;
        
        if(arg)
        {
            if(isInteger(arg) == true) var b = arg;
             else var b = 2;
        }
        
        if(arg > max){
            var b = 1;
        }
        
        if(!arg)
        {
            var b = 2;
        }
        
        if(stop){        
            timer = clearTimeout(timer);
        }
        b2 = b+1;
        
        timer = setTimeout('switchChangebox("changebox_home' + b + '"); autoswitchChangebox(' + b2 + ');', 10000);
    
}

function isUnsignedInteger(s) {
    return (s.toString().search(/^[0-9]+$/) == 0);
}

function isInteger(s) {
    return (s.toString().search(/^-?[0-9]+$/) == 0);
}

function show_menu_window(id)
{
    document.getElementById(id).className = 'sel';
}

function hide_menu_window(id)
{
    document.getElementById(id).className = '';
}