function show_layer(d,md) {
    if  (document.getElementById(d).style.display =="block")
	      {
		  document.getElementById(d).style.display = "none";
		  document.getElementById(md).className = "left_menu"; 
		  }
		  else
		  {
		  document.getElementById(d).style.display = "block";
		  document.getElementById(md).className = "left_menu_over"; 
		  }
   }
function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

function check_layer(d,md) {
    if  (document.getElementById(d).style.display =="block")
	      {
		  document.getElementById(md).className = "left_menu_over"; 
		  }
		  else
		  {
		  document.getElementById(md).className = "left_menu"; 
		  }
   }
   
function clear_field(d,fr) {
    if (document.getElementById(d).value ==fr)
	{
	document.getElementById(d).value= "";
	}

   }

function fill_field(dest,source) {
    if (document.getElementById(dest).value =='')
	{
	document.getElementById(dest).value= document.getElementById(source).value;
	}

   }

function show_layer2(d) {
    if  (document.getElementById(d).style.display =="block")
	      {
		  document.getElementById(d).style.display = "none";
		  }
		  else
		  {
		  document.getElementById(d).style.display = "block";
		  }
   }