function show_hide_form(id){
	help_var=document.getElementById('write_form_'+id).style.display;
	if(help_var=='none') document.getElementById('write_form_'+id).style.display="block";
	if(help_var=='block') document.getElementById('write_form_'+id).style.display="none";	

	help_var=document.getElementById('write_form_link'+id).style.display;	
	if(help_var=='none') document.getElementById('write_form_link'+id).style.display="block";
	if(help_var=='block') document.getElementById('write_form_link'+id).style.display="none";	
}

function GetSelectedItem_period() {
		chosen = ""
		len = document.form_ps.period.length
		
		for (i = 0; i <len; i++) {
		if (document.form_ps.period[i].checked) {
		chosen = document.form_ps.period[i].value		
		}
		}
		
		if (chosen == "defined_period") {
			value=40;
			document.getElementById("date_period_select").style.opacity = value/100;
			document.getElementById("date_period_select").style.MozOpacity = value/100;	
			document.getElementById("date_period_select").style.filter  = "alpha(opacity=" + value + ")";		
			
			value=100;
			document.getElementById("date_period_defined").style.opacity = value/100;
			document.getElementById("date_period_defined").style.MozOpacity = value/100;	
			document.getElementById("date_period_defined").style.filter  = "alpha(opacity=" + value + ")";					
		}		
		
		if (chosen == "select_period") {
			value=100;
			document.getElementById("date_period_select").style.opacity = value/100;
			document.getElementById("date_period_select").style.MozOpacity = value/100;	
			document.getElementById("date_period_select").style.filter  = "alpha(opacity=" + value + ")";		
			
			value=40;
			document.getElementById("date_period_defined").style.opacity = value/100;
			document.getElementById("date_period_defined").style.MozOpacity = value/100;	
			document.getElementById("date_period_defined").style.filter  = "alpha(opacity=" + value + ")";						}
		
}

/* FADE IN EFFECT */
function initImage() {
  imageId = 'thephoto';
  image = document.getElementById(imageId);
  setOpacity(image, 0);
  image.style.visibility = 'visible';
  fadeIn(imageId,0);
}
function setOpacity(obj, opacity) {
  opacity = (opacity == 100)?99.999:opacity;

  // IE/Win
  obj.style.filter = "alpha(opacity:"+opacity+")";

  // Safari<1.2, Konqueror
  obj.style.KHTMLOpacity = opacity/100;

  // Older Mozilla and Firefox
  obj.style.MozOpacity = opacity/100;

  // Safari 1.2, newer Firefox and Mozilla, CSS3
  obj.style.opacity = opacity/100;
}
function fadeIn(objId,opacity) {
  if (document.getElementById) {
    obj = document.getElementById(objId);
    if (opacity <= 99) {
      setOpacity(obj, opacity);
      opacity += 33;
      window.setTimeout("fadeIn('"+objId+"',"+opacity+")", 100);
    }
  }
}

/* FADE IN EFFECT */