function show_Element(name,show){

  document.getElementById(name).style.display = show?'block':'none';

}

function search_change(val){
	setCookie('search',val);

  document.getElementById("search_content").style.height = '200px';
  //document.getElementById("search_content").className = "search_content";
  show_Element("search_content",false);
  show_Element("search_hide",false);
  show_Element("search_"+val,true);
}

function region_change(val){
	setCookie('tabs',val);

  if(val=='technique'){
    document.getElementById("authors").className = "button-inactive button-text white";
    document.getElementById("technique").className = "button-active button-text white";
  }
  else{
    document.getElementById("technique").className = "button-inactive button-text white";
    document.getElementById("authors").className = "button-active button-text white";
  }
  show_Element("agree_def_cont",false);
  show_Element("agree_technique",false);
  show_Element("agree_authors",false);
  show_Element("agree_"+val,true);
}


function isset(varname)
{
     return(typeof(window[varname])!='undefined');
}

function setCookie(c_name,value,expiredays)
{
     if (!isset(expiredays)) { expiredays = 1; }
     var exdate=new Date();
     exdate.setDate(exdate.getDate()+expiredays);
     result = document.cookie = c_name + "=" + escape(value) + ( (expiredays==null) ? "" : ";expires=" + exdate.toGMTString() );
     return result;
}

function getCookie(c_name)
{
     if (document.cookie.length>0)
     {
          c_start=document.cookie.indexOf(c_name + "=");
          if (c_start!=-1)
          {
               c_start=c_start + c_name.length+1;
               c_end=document.cookie.indexOf(";",c_start);
               if (c_end==-1) c_end=document.cookie.length;
               return unescape(document.cookie.substring(c_start,c_end));
          }
     }
     return false;
}

if (getCookie('tabs') == false) { setCookie('tabs','technique'); }
if (getCookie('search') == false) { setCookie('search','hide'); }
//function Delete_Cookie( name, value) {
// alert(value);
// if ( getCookie( 'tabs' ) ) document.cookie = name + "=" +
// ";expires=Thu, 01-Jan-1970 00:00:01 GMT";
//}