delete lookAt[0]; 
 lookAt.splice(0,1); 
	setTreeCount: function ()	{		if (this.mRoot != null)		{			// Walk the activity tree, setting count			var walk =  this.mRoot;			var count = 0;						var lookAt = new Array();						while (walk != null)			{				count++;				walk.setCount(count);								// Save the activity for later				if (walk.hasChildren(true))				{					lookAt[lookAt.length] = walk;					walk = walk.getChildren(true)[0];				}				else				{					walk = walk.getNextSibling(true);				}								while (lookAt.length != 0 && walk == null)				{					// Remove the activity from the 'lookat' list					walk = lookAt[0];					delete lookAt[0];					walk = walk.getNextSibling(true);				}			}		}	},
6251	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/6251/e9a2948e4a3808d08f242c7ad447662b74695911/SeqActivityTree.js/clean/Modules/Scorm2004/scripts/adl2js/SeqActivityTree.js