function highlightmenu(which) {
    if (which) {
		var menu_item = $('menu_' + which);
		menu_item.setStyle({
			color: 'black',
			backgroundColor: '#C4C5C7',
			fontSize: '11px'
		});
	}
}

function echeck(str) {
	var at="@"
	var dot="."
	var lat=str.indexOf(at)
	var lstr=str.length
	var ldot=str.indexOf(dot)
	if (str.indexOf(at)==-1){
		return false
	}

	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		return false
	}

	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		return false
	}

	if (str.indexOf(at,(lat+1))!=-1){
		return false
	}

	if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		return false
	}

	if (str.indexOf(dot,(lat+2))==-1){
		return false
	}
	
	if ( str.indexOf(" ") != -1 ) {
		return false
	}

	return true					
}

function maillist() {
     if ( (!$('fullname').value) || (!echeck($('email').value)) ) {        
        alert('Please provide at least your name and a valid email address');
        return;
     }
     var url = 'messenger.php';
     var pars = 'func=domail&' + $('mailform').serialize();        
     var myAjax = new Ajax.Request(url, {method: 'get', parameters: pars,
            onComplete:function(request){
                alert(request.responseText);
             }
            });
}
 
 /*
  function setImageDimension(image,dimension) {
    var height = image.height;
    var width = image.width;  
    if (height > width)
       image.height=dimension;
    else
       image.width=dimension;
  }
 */ 

  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];}
    }