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	Figure 1: A typical Fourier fit illustrated for the system V2388 Oph as an example. The residuals from the fit are also displayed at top shifted by 1.1 light units.
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In the text

Figure 2: Fourier coefficients a2 and a4 have been used to separate detached binaries from EW and EB binaries. The error bars are representing the standard estimation errors of the Fourier coefficients obtained during the least-square fits to the normalized light curves. The solid thick curve illustrates the "Fourier filter'' boundary a4=a2(0.125 - a2) which corresponds to the theoretical position of systems at marginal contact and separates the detached binaries (located above that curve) from real EW and EB binaries (located below that curve). The detached system which were filtered on a2-a4 plane are labeled by their variable-star names.

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In the text

Figure 3: Fourier coefficients a1 and a2 have been used to separate EB binaries from genuine EW binaries. The error bars are representing the standard estimation errors of the Fourier coefficients obtained during the least-square fits to the normalized light curves. The solid thick line illustrates the "Fourier filter" boundary a1=-0.02 which separates the EB binaries (located above that line) from EW binaries (located below that line) as suggested by Rucinski (1997a,b). The EB system which were filtered on a2-a1 plane are labeled by their variable-star names. The systems which passed the filter but very close to the boundary are also labeled by their variable-star names.

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In the text