if(!dojo._hasResource["dijit._base.wai"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
dojo._hasResource["dijit._base.wai"] = true;
dojo.provide("dijit._base.wai");

dijit.wai = {
	onload: function(){
		// summary:
		//		Function that detects if we are in high-contrast mode or not,
		//		and sets up a timer to periodically confirm the value.
		//		figure out the background-image style property
		//		and apply that to the image.src property.
		// description:
		//		This must be a named function and not an anonymous
		//		function, so that the widget parsing code can make sure it
		//		registers its onload function after this function.
		//		DO NOT USE "this" within this function.

		// create div for testing if high contrast mode is on or images are turned off
		var div = document.createElement("div");
		div.id = "a11yTestNode";
		div.style.cssText = 'border: 1px solid;'
			+ 'border-color:red green;'
			+ 'position: absolute;'
			+ 'height: 5px;'
			+ 'top: -999px;'
			+ 'background-image: url("' + dojo.moduleUrl("dijit", "form/templates/blank.gif") + '");';
		dojo.body().appendChild(div);

		// test it
		function check(){
			var cs = dojo.getComputedStyle(div);
			if(cs){
				var bkImg = cs.backgroundImage;
				var needsA11y = (cs.borderTopColor==cs.borderRightColor) || (bkImg != null && (bkImg == "none" || bkImg == "url(invalid-url:)" ));
				dojo[needsA11y ? "addClass" : "removeClass"](dojo.body(), "dijit_a11y");
			}
		}
		check();
		if(dojo.isIE){
			setInterval(check, 4000);
		}
	}
};

// Test if computer is in high contrast mode.
// Make sure the a11y test runs first, before widgets are instantiated.
if(dojo.isIE || dojo.isMoz){	// NOTE: checking in Safari messes things up
	dojo._loaders.unshift(dijit.wai.onload);
}

dojo.mixin(dijit,
{
	hasWaiRole: function(/*Element*/ elem){
		// Summary: Return true if elem has a role attribute and false if not.
		if(elem.hasAttribute){
			return elem.hasAttribute("role");
		}else{
			return elem.getAttribute("role") ? true : false;
		}
	},

	getWaiRole: function(/*Element*/ elem){
		// Summary: Return the role of elem or an empty string if
		//		elem does not have a role.
		var value = elem.getAttribute("role");
		if(value){
			var prefixEnd = value.indexOf(":");
			return prefixEnd == -1 ? value : value.substring(prefixEnd+1);
		}else{
			return "";
		}
	},

	setWaiRole: function(/*Element*/ elem, /*String*/ role){
		// Summary: Set the role on elem. On Firefox 2 and below, "wairole:" is
		//		prepended to the provided role value.
		if(dojo.isFF && dojo.isFF < 3){
			elem.setAttribute("role", "wairole:"+role);
		}else{
			elem.setAttribute("role", role);
		}
	},

	removeWaiRole: function(/*Element*/ elem){
		// Summary: Removes the role attribute from elem.
		elem.removeAttribute("role");
	},

	hasWaiState: function(/*Element*/ elem, /*String*/ state){
		// Summary: Return true if elem has a value for the given state and
		//		false if it does not.
		//		On Firefox 2 and below, we check for an attribute in namespace
		//		"http://www.w3.org/2005/07/aaa" with a name of the given state.
		//		On all other browsers, we check for an attribute called
		//		"aria-"+state.
		if(dojo.isFF && dojo.isFF < 3){
			return elem.hasAttributeNS("http://www.w3.org/2005/07/aaa", state);
		}else{
			if(elem.hasAttribute){
				return elem.hasAttribute("aria-"+state);
			}else{
				return elem.getAttribute("aria-"+state) ? true : false;
			}
		}
	},

	getWaiState: function(/*Element*/ elem, /*String*/ state){
		// Summary: Return the value of the requested state on elem
		//		or an empty string if elem has no value for state.
		//		On Firefox 2 and below, we check for an attribute in namespace
		//		"http://www.w3.org/2005/07/aaa" with a name of the given state.
		//		On all other browsers, we check for an attribute called
		//		"aria-"+state.
		if(dojo.isFF && dojo.isFF < 3){
			return elem.getAttributeNS("http://www.w3.org/2005/07/aaa", state);
		}else{
			var value =  elem.getAttribute("aria-"+state);
			return value ? value : "";
		}
	},

	setWaiState: function(/*Element*/ elem, /*String*/ state, /*String*/ value){
		// Summary: Set state on elem to value.
		//		On Firefox 2 and below, we set an attribute in namespace
		//		"http://www.w3.org/2005/07/aaa" with a name of the given state.
		//		On all other browsers, we set an attribute called
		//		"aria-"+state.
		if(dojo.isFF && dojo.isFF < 3){
			elem.setAttributeNS("http://www.w3.org/2005/07/aaa",
				"aaa:"+state, value);
		}else{
			elem.setAttribute("aria-"+state, value);
		}
	},

	removeWaiState: function(/*Element*/ elem, /*String*/ state){
		// Summary: Removes the given state from elem.
		//		On Firefox 2 and below, we remove the attribute in namespace
		//		"http://www.w3.org/2005/07/aaa" with a name of the given state.
		//		On all other browsers, we remove the attribute called
		//		"aria-"+state.
		if(dojo.isFF && dojo.isFF < 3){
			elem.removeAttributeNS("http://www.w3.org/2005/07/aaa", state);
		}else{
			elem.removeAttribute("aria-"+state);
		}
	}
});

}