function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function CreateBookmarkLink() {
  title = "Webpage Title"; 
  url = "Webpage URL";
 	if (window.sidebar) { // Mozilla Firefox Bookmark
		window.sidebar.addPanel('<?=SITE_NAME?>','<?=SITE_WS_PATH?>',"");
	} else if( window.external ) { // IE Favorite
		window.external.AddFavorite('<?=SITE_WS_PATH?>','<?=SITE_NAME?>'); }
	else if(window.opera && window.print) { // Opera Hotlist
		return true; }
 }

 /*if (window.external) {
  document.write('<a href = 
     "javascript:CreateBookmarkLink()");">Add to Favorites</a>'); 
  } else  if (window.sidebar) {
  document.write('<a href = 
    "javascript:CreateBookmarkLink()");">Bookmark Page</a>'); 
 } else if (window.opera && window.print) {	
   document.write('<a href =
     "javascript:CreateBookmarkLink()");">Add Bookmark</a>');
 } */

function valid_email(str)
{
	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if (filter.test(str))  { 
		return true;
	} else {
		return false;
	}
}