function clearInput() {
	$('newsletter_searchbox').value = ($('newsletter_searchbox').value == "E-post adress") ? "" : "E-post adress";
}

function isEmail(emailAddress){

emailAddressValue=emailAddress.value.toLowerCase();

var countryTLDs=/^(ac|ad|ae|af|ag|ai|al|am|an|ao|aq|ar|as|at|au|aw|az|ba|bb|bd|be|bf|bg|bh|bi|bj|bm|bn|bo|br|bs|bt|bv|bw|by|bz|ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|cr|cu|cv|cx|cy|cz|de|dj|dk|dm|do|dz|ec|ee|eg|eh|er|es|et|eu|fi|fj|fk|fm|fo|fr|ga|gd|ge|gf|gg|gh|gi|gl|gm|gn|gp|gq|gr|gs|gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|il|im|in|io|iq|ir|is|it|je|jm|jo|jp|ke|kg|kh|ki|km|kn|kp|kr|kw|ky|kz|la|lb|lc|li|lk|lr|ls|lt|lu|lv|ly|ma|mc|md|mg|mh|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|mv|mw|mx|my|mz|na|nc|ne|nf|ng|ni|nl|no|np|nr|nu|nz|om|pa|pe|pf|pg|ph|pk|pl|pm|pn|pr|ps|pt|pw|py|qa|re|ro|ru|rw|sa|sb|sc|sd|se|sg|sh|si|sj|sk|sl|sm|sn|so|sr|st|sv|sy|sz|tc|td|tf|tg|th|tj|tk|tm|tn|to|tp|tr|tt|tv|tw|tz|ua|ug|uk|um|us|uy|uz|va|vc|ve|vg|vi|vn|vu|wf|ws|ye|yt|yu|za|zm|zw)$/;

var gTLDs=/^(aero|biz|com|coop|edu|gov|info|int|mil|museum|name|net|org|jobs)$/;

var basicAddress=/^(.+)@(.+)$/;

var specialChars='\\(\\)><@,;:\\\\\\\"\\.\\[\\]';

var validChars='\[^\\s'+specialChars+'\]';

var validCharset='ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789\'-_.';

var quotedUser='(\"[^\"]*\")';

var atom=validChars+'+';

var word='('+atom+'|'+quotedUser+')';

var validUser=new RegExp('^'+word+'(\.'+word+')*$');

var symDomain=new RegExp('^'+atom+'(\.'+atom+')*$');

var matchArray=emailAddressValue.match(basicAddress);

if(emailAddress.value==''||emailAddress==null){

return true;

}

if(matchArray==null){

alert('The Email address doesn\'t seem to be correct,\nplease check syntax.');

emailAddress.focus();

return false;

}else{

var user=matchArray[1];

var domain=matchArray[2];

for(i=0;i<user.length;i++){

if(validCharset.indexOf(user.charAt(i))==-1){

alert('The Email address contains invalid characters,\nplease check the username.');

emailAddress.focus();

return false;

}

}

for(i=0;i<domain.length;i++){

if(validCharset.indexOf(domain.charAt(i))==-1){

alert('The Email address contains invalid characters,\nplease check the domain.');

emailAddress.focus();

return false;

}

}

if(user.match(validUser)==null){

alert('The Email address doesn\'t seem to be correct,\nplease check the username.');

emailAddress.focus();

return false;

}

var atomPat=new RegExp('^'+atom+'$');

var domArr=domain.split('.');

var len=domArr.length;

for(i=0;i<len;i++){

if(domArr[i].search(atomPat)==-1){

alert('The Email address doesn\'t seem to be correct,\nplease check the domain name.');

emailAddress.focus();

return false;

}

}

if((domArr[domArr.length-1].length==2)&&(domArr[domArr.length-1].search(countryTLDs)==-1)){

alert('The Email address doesn\'t seem to be correct,\nplease check domain suffix.');

emailAddress.focus();

return false;

}

if((domArr[domArr.length-1].length>2)&&(domArr[domArr.length-1].search(gTLDs)==-1)){

alert('The Email address doesn\'t seem to be correct,\nplease check domain suffix.');

emailAddress.focus();

return false;

}

if((domArr[domArr.length-1].length<2)||(domArr[domArr.length-1].length>6)){

alert('The Email address doesn\'t seem to be correct,\nplease check domain suffix.');

emailAddress.focus();

return false;

}

if(len<2){

alert('The Email address doesn\'t seem to be correct,\nplease check missing hostname.');

emailAddress.focus();

return false;

}

}

return true;

}

String.prototype.trim = function() { return this.replace(/^\s*(\b.*\b|)\s*$/, "$1");       }

function mandatoryText(input,fieldName){

if(input.value.trim()==''||input==null){

alert('Please enter your '+fieldName+'.');

input.focus();

return false;

} else {

return true;

}

}

function validForm(){

if(!mandatoryText(document.getElementById('EMAIL_FIELD'), 'Email')) return;

if(!isEmail(document.getElementById('EMAIL_FIELD'))) return;

document.getElementById('emvForm').submit();

}
function popupMessage() {
	var popup = $('popupMessage');
	popup.remove();
}