// Clear Search
function clearDefault(el) {
if (el.defaultValue==el.value) el.value = ""
}

/* Zebra Styling on Table class - general */
$(document).ready( function() {
      $("table").find("tr:nth-child(even)").each(
        function(i) {
          if( 0 == $(this).find("th").length ) {
            $(this).addClass("even");
          }
        }
      );
    } );


// Adds a class focus to input text when focused
function focusfix(selector, className) {
$(selector).focus(function() {
$(this).addClass(className);
});
// Removes class when focus is lost
$(selector).blur(function() {
$(this).removeClass(className);
});
}

jQuery(document).ready(function($) {
focusfix('input.text', 'focus');
});

jQuery(document).ready(function($) {
focusfix('textarea', 'focus');
});


/* Icons */
$(document).ready(function(){

	$("a[@href$=pdf]").addClass("pdf");
	$("a[@href$=xls]").addClass("xls");
	$("a[@href$=doc]").addClass("doc");
	
});


// Homepage - Random Image
var theImages = new Array()
theImages[0] = '../img/home/01.jpg'
theImages[1] = '../img/home/02.jpg'
theImages[2] = '../img/home/03.jpg'
theImages[3] = '../img/home/04.jpg'
theImages[4] = '../img/home/07.jpg'
theImages[5] = '../img/home/08.jpg'
theImages[6] = '../img/home/09.jpg'
theImages[7] = '../img/home/10.jpg'
theImages[8] = '../img/home/11.jpg'
theImages[9] = '../img/home/12.jpg'
theImages[10] = '../img/home/13.jpg'
theImages[11] = '../img/home/14.jpg'
theImages[12] = '../img/home/15.jpg'

var j = 0
var p = theImages.length;
var preBuffer = new Array()
for (i = 0; i < p; i++){
   preBuffer[i] = new Image()
   preBuffer[i].src = theImages[i]
}
var whichImage = Math.round(Math.random()*(p-1));
function showImage(){
document.write('<img src="'+theImages[whichImage]+'">');
}

/* Image Caption */

//Get Element by Class Name from: http://www.robertnyman.com/2005/11/07/the-ultimate-getelementsbyclassname/

function getElementsByClassName(oElm, strTagName, strClassName){
    var arrElements = (strTagName == "*" && oElm.all)? oElm.all : oElm.getElementsByTagName(strTagName);
    var arrReturnElements = new Array();
    strClassName = strClassName.replace(/\-/g, "\\-");
    var oRegExp = new RegExp("(^|\\s)" + strClassName + "(\\s|$)");
    var oElement;
    for(var i=0; i<arrElements.length; i++){
        oElement = arrElements[i];      
        if(oRegExp.test(oElement.className)){
            arrReturnElements.push(oElement);
        }   
    }
    return (arrReturnElements)
}


//Function for converting title tags on images into caption

function addCaption(xClass) {
	var allImages = getElementsByClassName(document, "img", xClass);
	for ( var i=0; i < allImages.length; i++) {
		var imageCaption = document.createTextNode(allImages[i].title);
		var imageContainer = document.createElement("div");
		var imagePara = document.createElement("p");
		var imageWidth = allImages[i].getAttribute("width");
		var spareSpan = document.createElement("span"); //This adds an extra span. Useful for curved corners
		imagePara.appendChild(imageCaption);
		allImages[i].parentNode.insertBefore(imageContainer, allImages[i]);
		imageContainer.appendChild(allImages[i]);
		if ( allImages[i].title != "" ) {
		imageContainer.appendChild(imagePara); 
		}
		imageContainer.appendChild(spareSpan);		
		imageContainer.className = xClass
		spareSpan.className = "spareSpan"
		allImages[i].className = "imgCaption"
		imageContainer.style.width = imageWidth + "px";
		
    }
}




// Runs all the listed functions on the loading of the window

window.onload=function(){
addCaption("imgRight");
}

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";
			}
		}
	}
	// repeat the same tests as above for textarea
	var selects = document.getElementsByTagName("textarea");
	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);