function clear_input(obj) {
  var obj = document.getElementById(obj);
  obj.value = '';
}

function get_height_block() {
  var tz_main_block = document.getElementById('tz_main_block');
  tz_main_block.style.height = tz_main_block.clientHeight + 'px';
  document.body.style.height = document.body.clientHeight + 'px';

}

window.onload = get_height_block;

function menu_selector(obj,obj_stat) {
  var obj = document.getElementById(obj);
  var obj_stat = document.getElementById(obj_stat);

  var main_elements = document.getElementById('main_elements').getElementsByTagName('div');
  for(var j=0; j<main_elements.length; j++) {
    if(main_elements[j].id) {
      main_elements[j].style.marginTop = '-40px';
    }
  }

  obj_stat.style.marginTop = '-21px';

  var inner_elements_obj = document.getElementById('inner_elements');
  inner_elements_obj.style.width = 'auto';
  var inner_elements_arr = document.getElementById('inner_elements').getElementsByTagName('ul');

  for(var i=0; i<inner_elements_arr.length; i++) {
    inner_elements_arr[i].style.display = 'none';
  }

  obj.style.display = 'block';
  inner_elements_obj.style.width = inner_elements_obj.clientWidth + 'px';

  inner_elements_obj.style.left = (301 - (inner_elements_obj.clientWidth / 2)) + 'px';
}

function view_block(obj) {
        var obj = document.getElementById(obj);
        obj.style.height = 'auto';
        obj.style.overflow = 'visible';
        var tz_main_block = document.getElementById('tz_main_block');
        tz_main_block.style.height = '100%';
        document.body.style.height = document.body.clientHeight + 'px';
        tz_main_block.style.height = tz_main_block.clientHeight + 'px';
}

function resizeByContent() {
	var tz_main_block = document.getElementById('tz_main_block');
	var tz_content_container = $('div.tz_content_container')[0];
	tz_main_block.style.height = tz_content_container.clientHeight + 60 + 'px';
	document.body.style.height = document.body.clientHeight + 'px';
}