function echeck(str) {

		var at="@"

		var dot="."

		var lat=str.indexOf(at)

		var lstr=str.length

		var ldot=str.indexOf(dot)

		var errStr="Please type a valid e-mail address!"

		if (str.indexOf(at)==-1){

		   alert(errStr)

		   return false

		}



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

		   alert(errStr)

		   return false

		}



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

		    alert(errStr)

		    return false

		}



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

		    alert(errStr)

		    return false

		 }



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

		    alert(errStr)

		    return false

		 }



		 if (str.indexOf(dot,(lat+2))==-1){

		    alert(errStr)

		    return false

		 }

		

		 if (str.indexOf(" ")!=-1){

		    alert(errStr)

		    return false

		 }



 		 return true					

	}



function ValidateContactForm(form){

	var navnID=form.name

	var emailID=form.email

	var informationID=form.information

	

	if ((navnID.value==null)||(navnID.value=="")){

		alert("Please type a name!")

		navnID.focus()

		return false

	}



	if ((emailID.value==null)||(emailID.value=="")){

		alert("Please type an e-mail address!")

		emailID.focus()

		return false

	}



 	if (echeck(emailID.value)==false){

		emailID.value=""

		emailID.focus()

		return false

	}	

	

	if ((informationID.value==null)||(informationID.value=="")){

		alert("Please type a message!")

		informationID.focus()

		return false

	}

	

	disableSubmits(form);

	return true;

 }



function OpenPrintWindow(Link,Overskrift) {

	NewWindow = window.open(Link, Overskrift, 'toolbar=no,location=no,scrollbars=yes,Width=700,Height=490');

}



function disableSubmits (form) {

  for (var i = 0; i < form.elements.length; i++)

    if (form.elements[i].type.toLowerCase() == 'submit')

      form.elements[i].disabled = true;

}