function head_sudd(nr) {
	if(nr==0 || nr==1) {
		document.head_search_form.field[2].checked = false;
		document.head_search_form.field[3].checked = false;
		document.head_search_form.field[4].checked = false;
		document.head_search_form.field[5].checked = false;
		document.head_search_form.field[6].checked = false;
	}
	if(nr==2 || nr==3 || nr==4) {
		document.head_search_form.field[0].checked = false;
		document.head_search_form.field[1].checked = false;
		document.head_search_form.field[5].checked = false;
		document.head_search_form.field[6].checked = false;
	}
	if(nr==5) {
		document.head_search_form.field[0].checked = false;
		document.head_search_form.field[1].checked = false;
		document.head_search_form.field[2].checked = false;
		document.head_search_form.field[3].checked = false;
		document.head_search_form.field[4].checked = false;
		document.head_search_form.field[6].checked = false;
	}
	if(nr==6) {
		document.head_search_form.field[0].checked = false;
		document.head_search_form.field[1].checked = false;
		document.head_search_form.field[2].checked = false;
		document.head_search_form.field[3].checked = false;
		document.head_search_form.field[4].checked = false;
		document.head_search_form.field[5].checked = false;
	}
	

}

function set_head_display() {
	$('adv_search_head_div').style.display='inline';
	head_search=1;
}

function show_head_display() {
	setTimeout ("set_head_display()", 50);
}

function show_menu(i) {
    if (i == -1) {
		if (activedrop > 0) {
	      document.getElementById('drop' + activedrop).style.visibility = 'hidden'
		}
   } else {
	   if(activedrop == i) {
		  hide_menu(i);
	   } else {
	      if(activedrop != 0 ) {
		  document.getElementById('drop' + activedrop).style.visibility = 'hidden'
	      }
	      document.getElementById('drop' + i).style.visibility = 'visible'
		  hidden = 0;
	      activedrop=i	
		  setTimeout ("hide_menu('" + i + "')",7000)	   
		}
	}
}

function hide_menu(i) {
   if(activedrop == i ) {
      document.getElementById('drop' + activedrop).style.visibility = 'hidden'
	  activedrop=0;
   }
}

activedrop = 0
hidden = 0;
head_search = 0;

document.onclick = function() {
	show_menu(-1);
	
	if (head_search) {
		head_search--;
		if (head_search == 0) {
			$('adv_search_head_div').style.display='none';
		}
	}
	
	if (hidden == 0) {
		hidden = 1;
	} else {
		activedrop = 0;
		hidden = 0;
	}
}