function isEmail(mailadr){
var expr = /^[a-zA-Z0-9\-\.\_]+\@[a-zA-Z0-9\_\-\.]+\.([a-zA-Z]{2,5})$/;

if (mailadr != ""){

		if (expr.test(mailadr)){
		return true;
		}
		else{
		return false;
		}
	}
	else{
	
		return false;
	
	}
}

function panelChange(panel1,panel2){
var persgeg = document.getElementById(panel1); 
var storing = document.getElementById(panel2);

persgeg.style.visibility = "hidden";
storing.style.visibility = "visible";
}

function isNumeric(getal){
var pattern = /[^0-9,]/;

if (pattern.test(getal)){
return false;
}
else{
return true;
}
}

function mail(esort,id,name){
var page = 'emailMessage.php?sort='+esort+'&id='+id+'&name='+name;
window.open(page, "", "menubar=no, scrollbars=no, width=450, height=240");
}

function mail2(esort,id,name){
var page = '../emailMessage.php?sort='+esort+'&id='+id+'&name='+name;
window.open(page, "", "menubar=no, scrollbars=no, width=450, height=240");
}

function recover(type){
var page = 'recovery.php?type='+type;
window.open(page, "", "menubar=no, scrollbars=no, width=405, height=160");
}

function trim(s) {
  while (s.substring(0,1) == ' ') {
    s = s.substring(1,s.length);
  }
  while (s.substring(s.length-1,s.length) == ' ') {
    s = s.substring(0,s.length-1);
  }
  return s;
}