function switch_color(host, color){window.location.href='http://'+host+'/switch_version.php?version='+color;}
function give_the_focus(){document.getElementById('id_keyword').focus();}	
function switch_search_type(type_chosen){var type=document.getElementById('id_type_search');var link_web=document.getElementById('link_a_web');var link_image=document.getElementById('link_a_image');var link_news=document.getElementById('link_a_news');type.value=type_chosen;
if (type_chosen=='web'){link_web.className='tab_selected';link_image.className='tab';link_news.className='tab';}
else if(type_chosen=='image'){link_web.className='tab';link_image.className='tab_selected';link_news.className='tab';}
else{link_web.className='tab';link_image.className='tab';link_news.className='tab_selected';}}