function LTrim(str)
{
   var whitespace = new String(" \t\n\r");
   var s = new String(str);
   if (whitespace.indexOf(s.charAt(0)) != -1) {
      var j=0, i = s.length;
      while (j < i && whitespace.indexOf(s.charAt(j)) != -1)
         j++;
	      s = s.substring(j, i);
   }
   return s;
}
function RTrim(str)
{
   var whitespace = new String(" \t\n\r");
   var s = new String(str);
   if (whitespace.indexOf(s.charAt(s.length-1)) != -1) {
      var i = s.length - 1;       // Get length of string
      while (i >= 0 && whitespace.indexOf(s.charAt(i)) != -1)
         i--;
	     s = s.substring(0, i+1);
   }
   return s;
}
function trim(str)
{
   return RTrim(LTrim(str));
}
function submit_article(form){
	var name=document.form2.name.value;
	var email=document.form2.email.value;
	if(trim(name).length==0||trim(email).length==0){
		alert("You must first insert your name and email address before you can submit an article");
		return false;
	}
}