var bFocused=false;

function ChangeFocus(focused)
{
	bFocused=focused;
}

function SubmitContact()
{
	if(VerifyContact())
		document.form_contact.submit();
}

function VerifyContact()
{
	if(bFocused==false)
	{
		return false;
	}
	if(document.form_contact.namecl.value=="")
	{
		alert("Please insert your name");
		document.form_contact.namecl.focus();
		return false;
	}
	if(document.form_contact.email.value=="")
	{
		alert("Please insert your e-mail");
		document.form_contact.email.focus();
		return false;
	}
	
	if(!echeck(document.form_contact.email.value))
	{
		alert("Invalid E-mail Adress!");
		document.form_contact.email.focus();
		return false;
	}
	
	if(document.form_contact.phone.value=="")
	{
		alert("Please insert your phone");
		document.form_contact.phone.focus();
		return false;
	}
	
	if(document.form_contact.comments_text.value=="")
	{
		alert("Please insert your message");
		document.form_contact.comments_text.focus();
		return false;
	}


	return true;
}

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;					
	}