function coreStructure()
{
	core.tree =
	{
		c0: {},
		c1_0: {},
		c1_1: {},
		c1_2: {},
		c1_3: {},
		c1_4: {},
		c1_5: {},
		c1_6: {},
		c1_7: {},
		c1_8: {},
		c2_0: {},
		c2_1: {},
		testing1:{},
		testing2:{},
		testing3:{},
		testing4:{},
		testing5:{},
		testing6:{},
		testing7:{},
		testing8:{},
		testing9:{},
		testing10:{},
		testing_end:{},
		help: {},
		toc: {},
		settings:{},
		bookmarks:{}
	}
}