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";
				}
				// when the cursor moves away from the field, hide the hint
				inputs[i].onblur = function () {
					this.parentNode.getElementsByTagName("span")[0].style.display = "none";
				}
			}
		}
		// 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";
				}
				selects[k].onblur = function () {
					this.parentNode.getElementsByTagName("span")[0].style.display = "none";
				}
			}
		}
	}
	addLoadEvent(prepareInputsForHints);