added frame.pushxy()/popxy()

exec/load/frame.js

@@ -297,7 +297,8 @@ function Frame(x,y,width,height,attr,frame) {
 	}
 	var position = {
 		cursor:{x:0,y:0},
-		offset:{x:0,y:0}
+		offset:{x:0,y:0},
+		stored:{x:0,y:0}
 	}
 		
 	/* protected properties */
@@ -795,6 +796,14 @@ function Frame(x,y,width,height,attr,frame) {
 		}
 		return xy;
 	}
+	this.pushxy = function() {
+		position.stored.x = position.cursor.x;
+		position.stored.y = position.cursor.y;
+	}
+	this.popxy = function() {
+		position.cursor.x = position.stored.x;
+		position.cursor.y = position.stored.y;
+	}
 	
 	/* private functions */
 	function getTop(canvas,x,y) {