function checkEmail(myForm)
	{
		if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(myForm.email.value))
		{
			return (true);
		}
		alert("Please enter your valid email address");
		return (false);
	}

	function trim(inputString) 
	{
		if (typeof inputString != "string") { return inputString; }
		var retValue = inputString;
		var ch = retValue.substring(0, 1);
		while (ch == " ") 
		{ 
			retValue = retValue.substring(1, retValue.length);
			ch = retValue.substring(0, 1);
		}
		ch = retValue.substring(retValue.length-1, retValue.length);
		while (ch == " ") 
		{
			retValue = retValue.substring(0, retValue.length-1);
			ch = retValue.substring(retValue.length-1, retValue.length);
		}
		while (retValue.indexOf("  ") != -1) 
		{ 
			retValue = retValue.substring(0, retValue.indexOf("  ")) + retValue.substring(retValue.indexOf("  ")+1, retValue.length); 
		}
		return retValue; 
	} 

	function checkform(mf)
	{
		if(mf.name.value=="" || mf.name.value=="Name")
		{
			alert("Please enter name");
			mf.name.focus();
			return false;
		}
		if(trim(mf.email.value)=="" || trim(mf.email.value)=="Email")
		{ 
			alert("Please enter your e-mail address");
			mf.email.focus();
			return false;
		}
		if(checkEmail(mf)==false)
		{
			mf.email.focus();
			return false; 
		}
		if(mf.title.value=="" || mf.title.value=="Title")
		{
			alert("Please enter title");
			mf.title.focus();
			return false;
		}
		if(mf.company.value=="" || mf.company.value=="Company")
		{
			alert("Please enter company name");
			mf.company.focus();
			return false;
		}
		if(mf.address.value=="" || mf.address.value=="Address")
		{
			alert("Please enter address");
			mf.address.focus();
			return false;
		}
		if(mf.phone.value=="" || mf.phone.value=="Telephone")
		{
			alert("Please enter telephone number");
			mf.phone.focus();
			return false;
		}
		if(mf.comments.value=="" || mf.comments.value=="Comments")
		{
			alert("Please write message/comments");
			mf.comments.focus();
			return false;
		}
		return true;
	}

	function checkform1(mf)
	{
		if(mf.chkautograph1.checked==false && mf.chkautograph2.checked==false && mf.chkautograph3.checked==false)
		{
			alert("Please select atleast single autograph");
			mf.chkautograph1.focus();
			return false;
		}
		if(mf.vorname.value=="" || mf.vorname.value=="Vorname")
		{
			alert("Please enter firstname");
			mf.vorname.focus();
			return false;
		}
		if(mf.nachname.value=="" || mf.nachname.value=="Nachname")
		{
			alert("Please enter lastname");
			mf.nachname.focus();
			return false;
		}
		if(mf.address.value=="" || mf.address.value=="Adresse")
		{
			alert("Please enter address");
			mf.address.focus();
			return false;
		}
		if(trim(mf.email.value)=="" || trim(mf.email.value)=="Email")
		{ 
			alert("Please enter your e-mail address");
			mf.email.focus();
			return false;
		}
		if(checkEmail(mf)==false)
		{
			mf.email.focus();
			return false; 
		}
		if(mf.plz.value=="" || mf.plz.value=="PLZ")
		{
			alert("Please enter zipcode");
			mf.plz.focus();
			return false;
		}
		if(mf.ort.value=="" || mf.ort.value=="Ort")
		{
			alert("Please enter city");
			mf.ort.focus();
			return false;
		}
		return true;
	}