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-rw-r--r--ui/ui.slider.js4
1 files changed, 2 insertions, 2 deletions
diff --git a/ui/ui.slider.js b/ui/ui.slider.js
index 73877a21e..44936a8e5 100644
--- a/ui/ui.slider.js
+++ b/ui/ui.slider.js
@@ -204,8 +204,8 @@ $.widget("ui.slider", {
updateRange: function() {
var prop = this.options.axis == "vertical" ? "top" : "left";
var size = this.options.axis == "vertical" ? "height" : "width";
- this.rangeElement.css(prop, parseInt($(this.handle[0]).css(prop),10) + this.handleSize(0, this.options.axis == "vertical" ? "y" : "x")/2);
- this.rangeElement.css(size, parseInt($(this.handle[1]).css(prop),10) - parseInt($(this.handle[0]).css(prop),10));
+ this.rangeElement.css(prop, (parseInt($(this.handle[0]).css(prop),10) || 0) + this.handleSize(0, this.options.axis == "vertical" ? "y" : "x")/2);
+ this.rangeElement.css(size, (parseInt($(this.handle[1]).css(prop),10) || 0) - (parseInt($(this.handle[0]).css(prop),10) || 0));
},
getRange: function() {
return this.rangeElement ? this.convertValue(parseInt(this.rangeElement.css(this.options.axis == "vertical" ? "height" : "width"),10), this.options.axis == "vertical" ? "y" : "x") : null;