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);