function docReady( callback ) {
	var ua = window.navigator.userAgent;
	var b_IE10_or_older = ( ua.indexOf("MSIE ") > 0 );
b_IE10_or_older =0;
	if ( b_IE10_or_older ) {
		if ( document.readyState == "complete" ) {
			callback();
		} else {
			document.addEventListener("readystatechange",function(event){
				if (event.target.readyState === "complete") {
					callback();
				}
			});
		}
	} else {
		if (( document.readyState == "interactive" ) ||
			( document.readyState == "complete" )) {
			callback();
		} else {
			document.addEventListener("readystatechange",function(event){
				if (event.target.readyState === "interactive") {
					callback();
				}
			});
		}
	}
};