window.onload = doOnLoad;


/**
*	Help to determinate easily when
*	an object is empty.
*
*	@param					String objectID
*/
function is_empty(str)
{
	return ( str==null || str==0 || str=="" || str.length<1 );
} // is_empty


/**
 *
 * @access public
 * @return void
 **/
function doOnLoad()
{
	transformExternalAnchors();
	pngFix();
}  // doOnLoad


/**
 *
 * @access public
 * @return void
 **/
function pngFix()
{
/*

Correctly handle PNG transparency in Win IE 5.5 & 6.
http://homepage.ntlworld.com/bobosola. Updated 18-Jan-2006.

Use in <HEAD> with DEFER keyword wrapped in conditional comments:
<!--[if lt IE 7]>
<script defer type="text/javascript" src="common.js">pngFix();</script>
<![endif]-->

*/
	var arVersion = navigator.appVersion.split("MSIE")
	var version = parseFloat(arVersion[1])

	if ((version >= 5.5) && (document.body.filters))
	{
	   for(var i=0; i<document.images.length; i++)
	   {
	      var img = document.images[i]
	      var imgName = img.src.toUpperCase()
	      if (imgName.substring(imgName.length-3, imgName.length) == "PNG")
	      {
	         var imgID = (img.id) ? "id='" + img.id + "' " : ""
	         var imgClass = (img.className) ? "class='" + img.className + "' " : ""
	         var imgTitle = (img.title) ? "title='" + img.title + "' " : "title='" + img.alt + "' "
	         var imgStyle = "display:inline-block;" + img.style.cssText
	         if (img.align == "left") imgStyle = "float:left;" + imgStyle
	         if (img.align == "right") imgStyle = "float:right;" + imgStyle
	         if (img.parentElement.href) imgStyle = "cursor:hand;" + imgStyle
	         var strNewHTML = "<span " + imgID + imgClass + imgTitle
	         + " style=\"" + "width:" + img.width + "px; height:" + img.height + "px;" + imgStyle + ";"
	         + "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
	         + "(src=\'" + img.src + "\', sizingMethod='scale');\"></span>"
	         img.outerHTML = strNewHTML
	         i = i-1
	      }
	   }
	}
} // pngFix


/**
*	Allow you to use an emulation of
*	target="_blank"
*
*/
function transformExternalAnchors()
{
	var i,a,f;
	if ( document.getElementsByTagName )
	{

		a = document.getElementsByTagName("a");
		i = 0;

		for(i=0;i<a.length;i++)
		{
			if ( a[i].getAttribute('href') && ( a[i].getAttribute("rel")=="external" ) )
			{
				a[i].target = "_blank";
			}
		} // for

		f = document.getElementsByTagName("form");
		i = 0;

		for(i=0;i<f.length;i++)
		{
			if ( f[i].getAttribute('action') && ( f[i].getAttribute("title")=="external" ) )
			{
				f[i].target = "_blank";
			}
		} // for
	} // if
} // transformExternalAnchors


/**
*	Allow you to jump to an URL
*	from a combo (option) box.
*
*	@param					String objectID
*/
function gotoFromCombo(strObjectId)
{
	var obj = document.getElementById(strObjectId);
	if ( obj!=null )
	{
		var i = obj.selectedIndex;
		var content = obj.options[i].value;
		if ( !is_empty(content) )
			window.location.href = content;
	} // if
} // gotoFromCombo



/**
*	Show/hide a target
*
*	@param					String target
*/
function toogleVisibility(target)
{
	target = document.getElementById(target);
	
	if (target)
	{
		if ( target.style.display=='none' )
			target.style.display = '';
		else
			target.style.display = 'none';
	}  // if
}  // toogleVisibility



/**
*	set a over class to a target
*	use it onmouseover in the html
*
*	@param					String target
*/
function setOverClass(target)
{
	target = document.getElementById(target);
	
	if (target)
	{
		if ( target.className=='mouseOver' )
			target.className = '';
		else
			target.className = 'mouseOver';
	}  // if
}  // setOverClass