djah

    protected static void drawGradientRect1(int par1, int par2, int par3, int par4, int par5, int par6)
    {
        float var6 = (float)(par5 >> 24 & 255) / 255.0F;
        float var7 = (float)(par5 >> 16 & 255) / 255.0F;
        float var8 = (float)(par5 >> 8 & 255) / 255.0F;
        float var9 = (float)(par5 & 255) / 255.0F;
        float var10 = (float)(par6 >> 24 & 255) / 255.0F;
        float var11 = (float)(par6 >> 16 & 255) / 255.0F;
        float var12 = (float)(par6 >> 8 & 255) / 255.0F;
        float var13 = (float)(par6 & 255) / 255.0F;
        GL11.glDisable(GL11.GL_TEXTURE_2D);
        GL11.glEnable(GL11.GL_BLEND);
        GL11.glDisable(GL11.GL_ALPHA_TEST);
        GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
        GL11.glShadeModel(GL11.GL_SMOOTH);
        Tessellator var14 = Tessellator.instance;
        var14.startDrawingQuads();
        var14.setColorRGBA_F(var7, var8, var9, var6);
        var14.addVertex((double)par3, (double)par2, (double)zLevel);
        var14.addVertex((double)par1, (double)par2, (double)zLevel);
        var14.setColorRGBA_F(var11, var12, var13, var10);
        var14.addVertex((double)par1, (double)par4, (double)zLevel);
        var14.addVertex((double)par3, (double)par4, (double)zLevel);
        var14.draw();
        GL11.glShadeModel(GL11.GL_FLAT);
        GL11.glDisable(GL11.GL_BLEND);
        GL11.glEnable(GL11.GL_ALPHA_TEST);
        GL11.glEnable(GL11.GL_TEXTURE_2D);
    }