ricoperta la getComputedStyle e gestito il caso di time < deltat che produceva errori...

diff --git a/web/commons.js b/web/commons.js
index 8bfa964..26e1581 100644 (file)
--- a/web/commons.js
+++ b/web/commons.js
@@ -25,6 +25,16 @@ var EXIT_BAN_TIME = 900;
 
 function $(id) { return document.getElementById(id); }
 
+function getStyle(x,IEstyleProp, MozStyleProp) 
+{
+    if (x.currentStyle) {
+       var y = x.currentStyle[IEstyleProp];
+    } else if (window.getComputedStyle) {
+       var y = document.defaultView.getComputedStyle(x,null).getPropertyValue(MozStyleProp);
+    }
+    return y;
+}
+
 /* replacement of setInterval on IE */
 (function(){
     /*if not IE, do nothing*/
@@ -338,9 +348,11 @@ function sleep(st, delay)
 function slowimg(img,x1,y1,deltat,free,action,srcend) {
     this.img = img;
 
-    this.x0  = parseInt(document.defaultView.getComputedStyle(this.img, "").getPropertyValue("left"));
-    // alert("img.x0 = "+this.x0);
-    this.y0  = parseInt(document.defaultView.getComputedStyle(this.img, "").getPropertyValue("top"));
+    // this.x0  = parseInt(document.defaultView.getComputedStyle(this.img, "").getPropertyValue("left"));
+    this.x0 = parseInt(getStyle(this.img,"left", "left"));
+// alert("img.x0 = "+this.x0);
+    // this.y0  = parseInt(document.defaultView.getComputedStyle(this.img, "").getPropertyValue("top"));
+    this.y0  = parseInt(getStyle(this.img,"top", "top"));
     this.x1  = x1;
     this.y1  = y1;
     this.deltat = deltat;
@@ -379,13 +391,14 @@ slowimg.prototype = {
        this.action = act;
     },
     
+
     settime: function(time) 
     {
-       this.time = time;
-       this.step_n = parseInt(time / this.deltat);
+       this.time = (time < this.deltat ? this.deltat : time);
+       this.step_n = parseInt(this.time / this.deltat);
        this.dx = (this.x1 - this.x0) / this.step_n;
        this.dy = (this.y1 - this.y0) / this.step_n;
-       if (this.step_n * this.deltat == time) {
+       if (this.step_n * this.deltat == this.time) {
            this.step_n--;
        }
        this.step_free = parseInt(this.step_n * this.free);