X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fsupport.js;h=ad8566d8bd047ab106d5f5d4b48bb3f9636c0f1f;hb=c90a1cb61b41a5686bc3764f144a156e734ed459;hp=04c3a2a69d6c16fc155f56d9ecbc9489b3699ff5;hpb=f8ef75eb9124ce924be5fb521c783efd5c996e33;p=jquery.git

diff --git a/src/support.js b/src/support.js
index 04c3a2a..ad8566d 100644
--- a/src/support.js
+++ b/src/support.js
@@ -5,10 +5,10 @@
 	var root = document.documentElement,
 		script = document.createElement("script"),
 		div = document.createElement("div"),
-		id = "script" + (new Date).getTime();
+		id = "script" + now();
 
 	div.style.display = "none";
-	div.innerHTML = '   <link/><table></table><a href="/a" style="color:red;float:left;opacity:.5;">a</a><select><option>text</option></select>';
+	div.innerHTML = '   <link/><table></table><a href="/a" style="color:red;float:left;opacity:.55;">a</a><select><option>text</option></select>';
 
 	var all = div.getElementsByTagName("*"),
 		a = div.getElementsByTagName("a")[0];
@@ -40,7 +40,7 @@
 
 		// Make sure that element opacity exists
 		// (IE uses filter instead)
-		opacity: a.style.opacity === "0.5",
+		opacity: a.style.opacity === "0.55",
 
 		// Verify style float existence
 		// (IE uses styleFloat instead of cssFloat)
@@ -88,7 +88,30 @@
 		document.body.appendChild( div );
 		jQuery.boxModel = jQuery.support.boxModel = div.offsetWidth === 2;
 		document.body.removeChild( div ).style.display = 'none';
+		div = null;
 	});
+
+	// Technique from Juriy Zaytsev
+	// http://thinkweb2.com/projects/prototype/detecting-event-support-without-browser-sniffing/
+	var eventSupported = function( eventName ) { 
+		var el = document.createElement("div"); 
+		eventName = "on" + eventName; 
+
+		var isSupported = (eventName in el); 
+		if ( !isSupported ) { 
+			el.setAttribute(eventName, "return;"); 
+			isSupported = typeof el[eventName] === "function"; 
+		} 
+		el = null; 
+
+		return isSupported; 
+	};
+	
+	jQuery.support.submitBubbles = eventSupported("submit");
+	jQuery.support.changeBubbles = eventSupported("change");
+
+	// release memory in IE
+	root = script = div = all = a = null;
 })();
 
 jQuery.props = {
@@ -98,5 +121,8 @@ jQuery.props = {
 	maxlength: "maxLength",
 	cellspacing: "cellSpacing",
 	rowspan: "rowSpan",
-	tabindex: "tabIndex"
+	colspan: "colSpan",
+	tabindex: "tabIndex",
+	usemap: "useMap",
+	frameborder: "frameBorder"
 };