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 openwindow (url, winname, w, h) {
  window.open (url, winname, "width=" + w + ",height=" + h + ",menu=no,toolbars=no,status=yes,scrollbars=yes,resizable=yes");
  return;
}

function showHide(id) {	
	if (document.all) {
	  document.getElementById = document.all;
	  w1 = document.getElementById (id);
	} else {
	  w1 = document.getElementById (id);
	}	
	if (w1.style.display == "none") w1.style.display="block";
	else w1.style.display="none";	
}

function checkemailaddress (object_value, required) {
	if( required )
    {
        if( object_value.length == 0 )
        {
            return false;
        }
    }else{
        if( object_value.length == 0 )
        {
            return true;
        }
    }
	
	if (checkregex(object_value, /[A-Za-z0-9_\-\.]+@[A-Za-z0-9_\-\.]+\.[A-Za-z]+/)) return true;
	else return false;
}

function checkregex(object_value, regexPattern, required) {
    if( required )
    {
        if( object_value.length == 0 )
        {
            return false;
        }
    }else{
        if( object_value.length == 0 )
        {
            return true;
        }
    }

	return regexPattern.test(object_value);
}