function checkDelete() {
  	if (confirm("Are you sure, you want to delete?")) {
      return true;
    } else {
      return false;
    }
  }
  
  function validateEmpty() {
  
    len=validateEmpty.arguments.length;
    s='';
    for (i=0;i<len;i=i+2) {
      if (elem=document.getElementById(validateEmpty.arguments[i])) {
        if (elem.value=='') {
          s=s+'Field '+validateEmpty.arguments[i+1]+" is empty\n";
        }
      }
    }
    if (s=='') {
      return true;
    } else {  
      alert(s);
      return false;
    }
  }