Accessibility = {}
			
	var form;
	
	Accessibility.onPageLoad = function() {
		Accessibility.loadPreferences();
	}
	
	Accessibility.savePreferences = function() {
		
		var settings = Common.getFormKeyValuePairs(form);	
		Common.setCookie("accessibility", settings, "/");
		
	}
	
	Accessibility.loadPreferences = function() {
		
		form = document.forms['settings'];		
		var settings = Common.getCookie("accessibility");
		
		Accessibility.applyPreferences(settings, document);
		
		if (form != null) {
			Common.setFormKeyValuePairs(form, settings);
			Accessibility.addPreviewEventHandlers();
		}
	}
	
	
	Accessibility.addPreviewEventHandlers = function() {
		var elems = form.elements;
		for (var n=0; n < elems.length; n++) {
			if (elems[n].type == "checkbox" || elems[n].type == "radio" || elems[n].type == "select-one") {
				if (Common.checkIfIE()) 
					elems[n].onclick = function() { Accessibility.refreshPreview(); };
				else
					elems[n].setAttribute("onclick", "Accessibility.refreshPreview()");
			}
		}
	}
	
	Accessibility.refreshPreview = function() {
		if (document.getElementById("autopreview").checked) {
			var settings = Common.getFormKeyValuePairs(form);
			
			Accessibility.applyPreferences(settings, document.getElementById("preview"));
			document.getElementById("preview").style.display = "block";
		} else {
			document.getElementById("preview").style.display = "none";
		}	
	}
	
	Accessibility.getPreference = function(type) {
		var values = Common.getCookie("accessibility");
		if (values != null) {
			var value = Common.getKeyValue(values, type);
			return value;
		} else {
			return null;
		}
	}
		
	
	Accessibility.applyPreferences = function(settings, targetObject) {
	
		var graphics = Common.getKeyValue(settings, "graphics");
		if (graphics != null) {
			
			if (graphics == "full") {
				//do nothing
			} else
			if (graphics == "simple") {
				var content = targetObject.getElementsByTagName("img");
				for(var i=0; i < content.length; i++){
					var oElement = content[i];
					if ((oElement.className.indexOf("_simple") == -1) && (oElement.className.indexOf("_alwaysShow") == -1))
						oElement.style.display = "none";
				}	 	             
	 	    } else
			if (graphics == "off") {
				var content = targetObject.getElementsByTagName("img");
				for(var i=0; i < content.length; i++){
					var oElement = content[i];
					if (oElement.className.indexOf("_alwaysShow") == -1)
						oElement.style.display = "none";
				}
			}
		}
		
		var layout = Common.getKeyValue(settings, "layout");
		if (layout != null) {
			if (layout == "yes") {
				var content = Common.getElementsByClassName(targetObject, "*", "_simpleLayout");
				for (var i=0; i < content.length; i++){
					content[i].style.display = "block";
				}
				
				var stylesheetCount = document.styleSheets.length;
				for (var i=0; i < stylesheetCount; i++) {
					document.styleSheets[i].disabled = true;
				}
				
			} else
			if (layout == "no") {
				//do nothing
			}
		}
		/*
		var textsize = Common.getKeyValue(settings, "textsize");
		if (textsize != null) {
			
		    //var content = document.getElementsByClassName(targetclass);
			var content = Common.getElementsByClassName(targetObject, "*", "main");
			if (content != null) {
			
				for(var i=0; i < content.length; i++){
					var oElement = content[i];

					if (content[i].style.fontSize == "") { 
						content[i].style.fontSize = "1.0em"; 
					}
	
		 	        content[i].style.fontSize = parseFloat(content[i].style.fontSize) + (textsize * 0.2) + "em";     
		 	    }
			}		
		}*/
		
		var textspacing = Common.getKeyValue(settings, "textspacing");
		if (textspacing != null && textspacing != "") {
			
			//var content = document.getElementsByClassName(targetclass);
			var content = Common.getElementsByClassName(targetObject, "*", "main");
			if (content != null) {
			
				for(var i=0; i < content.length; i++){
					var oElement = content[i];

					if (content[i].style.letterSpacing == "") { 
						content[i].style.letterSpacing = "0px"; 
					}
	
		 	        content[i].style.letterSpacing = parseFloat(textspacing) + "px";     
		 	    }
			}		
		}
		
		var linkhighlight = Common.getKeyValue(settings, "linkhighlight");
		if (linkhighlight != null) {
			
			var content = targetObject.getElementsByTagName("A")
			if (content != null) {
			
				for(var i=0; i < content.length; i++){
					var oElement = content[i];
					if (oElement.nodeName == "A") {
						if (linkhighlight == 1) {
							content[i].style.backgroundColor = "#FFFF00";
						} else {
							content[i].style.backgroundColor = "";
						}
					}
		 	    }
			}
			
		}
		var colors = Common.getKeyValue(settings, "colors");
		if (colors != null) {

			var targetId = "";
			if (targetObject == document.getElementById("preview")) targetId = "#preview ";


			
			
			// Loop through the stylesheets until we find one we can modify without a security error
			var cssArrayLength = document.styleSheets.length;
			for(i=0; i<=cssArrayLength; i++) {
				try {					
					var css = document.styleSheets[i];
					var rules = (css.cssRules ? css.cssRules : css.rules);			
					break; // Break out of loop if no error encountered
				} catch(err) {			
					continue; // Return to start of loop and try again					
				}				
			}
			

			if (colors == "Default") {
				//do nothing
			} else
			if (colors == "High Contrast") {
				if (css.insertRule) {
					css.insertRule(targetId + 'body { background-color: #000000; color: #EEEE00;}',rules.length);
					css.insertRule(targetId + 'a { color: #00FFFF; }',rules.length);
				} else {
					css.addRule(targetId + 'body', 'background-color: #000000; color: #EEEE00;',rules.length);
					css.addRule(targetId + 'a', 'color: #00FFFF;',rules.length);
				}
				
			} else
			if (colors == "Soft") {
				if (css.insertRule) {
					css.insertRule(targetId + 'body { background-color: #FFFFCC; color: #333329;}',rules.length);
					css.insertRule(targetId + 'a { color: #4444F1; }',rules.length);
				} else {
					css.addRule(targetId + 'body', 'background-color: #FFFFCC; color: #333329;',rules.length);
					css.addRule(targetId + 'a', 'color: #4444F1;',rules.length);
				}
				
			} else
			if (colors == "Simple") {
				if (css.insertRule) {
					css.insertRule(targetId + 'body { background-color: #FFFFFF; color: #000000;}',rules.length);
					css.insertRule(targetId + 'a { color: #2222B5; }',rules.length);
				} else {
					css.addRule(targetId + 'body', 'background-color: #FFFFFF; color: #000000;',rules.length);
					css.addRule(targetId + 'a', 'color: #2222B5;',rules.length);
				}
				
			} else
			if (colors == "Blue") {
				if (css.insertRule) {
					css.insertRule(targetId + 'body { background-color: #9FCFFF; color: #010066;}',rules.length);
					css.insertRule(targetId + 'a { color: #000FFF; }',rules.length);
				} else {
					css.addRule(targetId + 'body', 'background-color: #9FCFFF; color: #010066;',rules.length);
					css.addRule(targetId + 'a', 'color: #000FFF;',rules.length);
				}
			}

		}
	
	}