function trim(stringToTrim) {
	return stringToTrim.replace(/^\s+|\s+$/g,"");
}

function validate_email(){
	
	var name = document.getElementById("name").value;
	name = trim(name);
	
	if((name=="Navn:") || (name=="")){
		alert("Angiv navn");
		document.getElementById("name").focus();
		return false;
	}
	
	if (!/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,4})+$/.test(document.getElementById("email").value)){
		alert("Angiv en gyldig e-mail adresse");
		document.getElementById("email").focus();
		return false;
	}

//checkboxes validation martin
var chk_stat = 0;

var chkbxs = document.getElementsByName('category[]');

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

if(chkbxs[i].checked) {

chk_stat = 1;

} //end if

} //end for


        if(chk_stat != 1){
                alert("Sæt venligst kryds i mindst 1 nyhedsbrevs-kategori");
                return false;
        }


} //end func