	handleBackButton: function(){		//summary: private method. Do not call this directly.		//The "current" page is always at the top of the history stack.		var current = this.historyStack.pop();		if(!current){ return; }		var last = this.historyStack[this.historyStack.length-1];		if(!last && this.historyStack.length == 0){			last = this.initialState;		}		if (last){			if(last.kwArgs["back"]){				last.kwArgs["back"]();			}else if(last.kwArgs["backButton"]){				last.kwArgs["backButton"]();			}else if(last.kwArgs["handle"]){				last.kwArgs.handle("back");			}		}		this.forwardStack.push(current);	},
6315	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/6315/2f1d2cb699c9d9329e8b782b0463156e211cb0f6/struts_dojo.js.uncompressed.js/buggy/src/main/resources/org/apache/struts2/static/dojo/struts_dojo.js.uncompressed.js