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 show( id ){
	document.getElementById( id ).style.visibility = 'visible';	
}

function hide( id ){
	document.getElementById( id ).style.visibility = 'hidden';	
}

function verify_form()
{
	document.getElementById('error').innerHTML = "Please wait...";
	var f1 = document.getElementById('name').value;	
	var f2 = document.getElementById('email').value;	
	var f3 = document.getElementById('message').value;	

	error1 = "";
		
	if (f1 == "" || f2 == "" || f3 == "" ){
		error1 = "<img src=\"images/error.gif\" width=\"10\" height=\"10\" /> Please fill all the fields!";
		
	}
	
	if (f2!=""){
		var email = checkMail(f2);
		if (email==1){
			error1 = error1 + "<img src=\"images/error.gif\" width=\"10\" height=\"10\" /> Incorrect e-mail address. ";
		}
	}
	
	if (error1 == ""){
		return true;
	}
	else{
		document.getElementById('error').innerHTML = error1;
		return false;

	}
}

function checkMail(email)
{
	var x = email;
	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if (filter.test(x)) return 0;
	else return 1;
}