function ChangeButton(button) {
    button.value = "Bitte warten...";
    button.disabled = true;
}

function poorman_toggle(id) 
{ 
    var tr = document.getElementById(id); 
    if (tr==null) { return; } 
    var bExpand = tr.style.display == ''; 
    tr.style.display = (bExpand ? 'none' : ''); 
}

function toggle(i) {
	if(document.getElementById(i).style.display == "none")
 		document.getElementById(i).style.display = "block";
	else
 		document.getElementById(i).style.display = "none";
}

function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      oldonload();
      func();
    }
  }
}

function prepareInputsForHints() {
	var inputs = document.getElementsByTagName("input");
	for (var i=0; i<inputs.length; i++){
		// test to see if the hint span exists first
		if (inputs[i].parentNode.getElementsByTagName("span")[0]) {
			// the span exists!  on focus, show the hint
			inputs[i].onfocus = function () {
				this.parentNode.getElementsByTagName("span")[0].style.display = "inline";
				this.style.border='1px solid #BF0000';
			}
			// when the cursor moves away from the field, hide the hint
			inputs[i].onblur = function () {
				this.parentNode.getElementsByTagName("span")[0].style.display = "none";
				this.style.border='1px solid #BBB';
			}
		}
	}
	// repeat the same tests as above for selects
	var selects = document.getElementsByTagName("select");
	for (var k=0; k<selects.length; k++){
		if (selects[k].parentNode.getElementsByTagName("span")[0]) {
			selects[k].onfocus = function () {
				this.parentNode.getElementsByTagName("span")[0].style.display = "inline";
				this.style.border='1px solid #BF0000';
			}
			selects[k].onblur = function () {
				this.parentNode.getElementsByTagName("span")[0].style.display = "none";
				this.style.border='1px solid #BBB';
			}
		}
	}
}
addLoadEvent(prepareInputsForHints);