/* 
Javascript for search form taken from 
DOM Scripting by Jeremy Keith, ISBN 1-59059-553-5
Used under provisions set forth in book.  
*/
/*
*
* Copyright (c) 2007 Andrew Tetlaw
* 
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
* 
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
* 
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
* * 
*
*
* FastInit
* http://tetlaw.id.au/view/javascript/fastinit
* Andrew Tetlaw
* Version 1.4.1 (2007-03-15)
* Based on:
* http://dean.edwards.name/weblog/2006/03/faster
* http://dean.edwards.name/weblog/2006/06/again/
* Help from:
* http://www.cherny.com/webdev/26/domloaded-object-literal-updated
* 
*/
var FastInit = {
	onload : function() {
		if (FastInit.done) { return; }
		FastInit.done = true;
		for(var x = 0, al = FastInit.f.length; x < al; x++) {
			FastInit.f[x]();
		}
	},
	addOnLoad : function() {
		var a = arguments;
		for(var x = 0, al = a.length; x < al; x++) {
			if(typeof a[x] === 'function') {
				if (FastInit.done ) {
					a[x]();
				} else {
					FastInit.f.push(a[x]);
				}
			}
		}
	},
	listen : function() {
		if (/WebKit|khtml/i.test(navigator.userAgent)) {
			FastInit.timer = setInterval(function() {
				if (/loaded|complete/.test(document.readyState)) {
					clearInterval(FastInit.timer);
					delete FastInit.timer;
					FastInit.onload();
				}}, 10);
		} else if (document.addEventListener) {
			document.addEventListener('DOMContentLoaded', FastInit.onload, false);
		} else if(!FastInit.iew32) {
			if(window.addEventListener) {
				window.addEventListener('load', FastInit.onload, false);
			} else if (window.attachEvent) {
				return window.attachEvent('onload', FastInit.onload);
			}
		}
	},
	f:[],done:false,timer:null,iew32:false
};
/*@cc_on @*/
/*@if (@_win32)
FastInit.iew32 = true;
document.write('<script id="__ie_onload" defer src="' + ((location.protocol == 'https:') ? '//0' : 'javascript:void(0)') + '"><\/script>');
document.getElementById('__ie_onload').onreadystatechange = function(){if (this.readyState == 'complete') { FastInit.onload(); }};
/*@end @*/
FastInit.listen();


function focusLabels() {
  if (!document.getElementsByTagName) return false;
  var labels = document.getElementsByTagName("label");
  for (var i=0; i<labels.length; i++) {
    if (!labels[i].getAttribute("for")) continue;
    labels[i].onclick = function() {
      var id = this.getAttribute("for");
      if (!document.getElementById(id)) return false;
      var element = document.getElementById(id);
      element.focus();
    }
  }
}

function resetFields(whichform) {
  for (var i=0; i<whichform.elements.length; i++) {
    var element = whichform.elements[i];
    if (element.type == "submit") continue;
    if (!element.defaultValue) continue;
    element.onfocus = function() {
    if (this.value == this.defaultValue) {
      this.value = "";
     }
    }
    element.onblur = function() {
      if (this.value == "") {
        this.value = this.defaultValue;
      }
    }
  }
}

function validateForm(whichform) {
  for (var i=0; i<whichform.elements.length; i++) {
    var element = whichform.elements[i];
    if (element.className.indexOf("requiredText") != -1) {
      if (!isFilled(element)) {
        alert("Please enter a keyword in the search field.");
        return false;
      }
    }
  }
  return true;
}

function isFilled(field) {
  if (field.value.length < 1 || field.value == field.defaultValue) {
    return false;
  } else {
    return true;
  }
}


function prepareForms() {
  for (var i=0; i<document.forms.length; i++) {
    var thisform = document.forms[i];
    resetFields(thisform);
    thisform.onsubmit = function() {
      return validateForm(this);
    }
  }
}

function setHeight() {
	
	var myWidth = 0, myHeight = 0;
  if( typeof( window.innerWidth ) == 'number' ) {
    //Non-IE
    myWidth = window.innerWidth;
    myHeight = window.innerHeight;
  } else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
    //IE 6+ in 'standards compliant mode'
    myWidth = document.documentElement.clientWidth;
    myHeight = document.documentElement.clientHeight;
  } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
    //IE 4 compatible
    myWidth = document.body.clientWidth;
    myHeight = document.body.clientHeight;
  }
  
	var img = document.getElementById("contentBar").getElementsByTagName("div")[0];
	var main = document.getElementById("main");
	var footer = document.getElementById("footer");
	
	//Min height is 750PX
	if(main && footer && myHeight) {
	  var totalOffset = img.offsetHeight + main.offsetHeight + footer.offsetHeight;
	  	  
	  if(myHeight < 650 && totalOffset < 775 )
		  footer.style.marginTop = 775 - totalOffset + "px";
	  else {
	  	  var leftover = myHeight - 35 - img.offsetHeight - main.offsetHeight - footer.offsetHeight;
	  	  if(leftover > 0) footer.style.marginTop = leftover + "px";
	  }
	}
}

FastInit.addOnLoad(setHeight);
FastInit.addOnLoad(focusLabels);
FastInit.addOnLoad(prepareForms);